TNKS encodes tankyrase-1/PARP5A, a multidomain NAD+-dependent ADP-ribosyltransferase that recognizes substrate proteins through ankyrin-repeat clusters and catalyzes protein poly- and auto-ADP-ribosylation. Its core functions include PARylation-dependent control of AXIN turnover and Wnt/beta-catenin signaling, telomere-associated TRF1 biology, and NuMA-dependent spindle organization, with activity distributed across cytoplasmic, nuclear/telomeric, and spindle-associated compartments.
| GO Term | Evidence | Action | Reason |
|---|---|---|---|
|
GO:0003950
NAD+ poly-ADP-ribosyltransferase activity
|
IBA
GO_REF:0000033 |
ACCEPT |
Summary: NAD+ poly-ADP-ribosyltransferase activity is a core TNKS catalytic molecular function.
Reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and protein substrates, with acidic acceptor-residue specificity supported by recent structural synthesis.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme** that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent ubiquitination and turnover.
|
|
GO:0005634
nucleus
|
IBA
GO_REF:0000033 |
ACCEPT |
Summary: nucleus localization is consistent with TNKS multi-compartment activity.
Reason: TNKS acts in nuclear/telomeric and cytoplasmic signaling contexts, including Wnt pathway regulation.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The retrieved evidence supports a “multi-compartment” view of TNKS localization via partner-mediated recruitment:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
|
|
GO:0005737
cytoplasm
|
IBA
GO_REF:0000033 |
ACCEPT |
Summary: cytoplasm localization is consistent with TNKS multi-compartment activity.
Reason: TNKS acts in nuclear/telomeric and cytoplasmic signaling contexts, including Wnt pathway regulation.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The retrieved evidence supports a “multi-compartment” view of TNKS localization via partner-mediated recruitment:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
|
|
GO:0070198
protein localization to chromosome, telomeric region
|
IBA
GO_REF:0000033 |
ACCEPT |
Summary: protein localization to chromosome, telomeric region is supported as a TNKS telomere-associated role.
Reason: TNKS is recruited to telomeres through TRF1 and regulates telomere-associated protein localization and telomere maintenance/capping outputs.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
**Telomeres**: recruitment via the telomeric factor **TRF1** (consistent with roles in telomere biology).
|
|
GO:0090263
positive regulation of canonical Wnt signaling pathway
|
IBA
GO_REF:0000033 |
ACCEPT |
Summary: positive regulation of canonical Wnt signaling pathway is a canonical TNKS pathway output through AXIN PARylation.
Reason: TNKS PARylates AXIN1/2 to promote RNF146-dependent AXIN degradation, thereby increasing Wnt/beta-catenin pathway output.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
Multiple retrieved sources state that **tankyrase PARylates AXIN (AXIN1/2)**, which promotes **RNF146-mediated ubiquitination** and **proteasomal degradation** of AXIN. Loss of AXIN destabilizes the destruction complex, thereby **stabilizing β-catenin** and increasing pathway output. Conversely, **tankyrase inhibition stabilizes AXIN** and reduces cytosolic β-catenin and β-catenin–dependent transcription.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary pathway role:** TNKS1/2 control **Wnt/β-catenin signaling** by PARylating **AXIN1/2** to promote RNF146-dependent degradation; inhibition stabilizes AXIN and suppresses β-catenin output.
file:human/TNKS/TNKS-deep-research-falcon.md
The canonical E3 ligase is **RNF146**, described as a **PAR-directed E3** that binds PARylated substrates (via a PAR-binding WWE domain recognizing iso-ADP-ribose) and installs **K48-linked polyubiquitin chains**, driving proteasomal degradation. This underlies a major mechanism by which TNKS controls the abundance of multiple signaling proteins.
|
|
GO:1904355
positive regulation of telomere capping
|
IBA
GO_REF:0000033 |
ACCEPT |
Summary: positive regulation of telomere capping is supported as a TNKS telomere-associated role.
Reason: TNKS is recruited to telomeres through TRF1 and regulates telomere-associated protein localization and telomere maintenance/capping outputs.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
**Telomeres**: recruitment via the telomeric factor **TRF1** (consistent with roles in telomere biology).
|
|
GO:0000139
Golgi membrane
|
IEA
GO_REF:0000044 |
KEEP AS NON CORE |
Summary: Golgi membrane is a plausible reported localization but not the dominant site of TNKS core activity.
Reason: TNKS has multi-compartment partner-mediated localization; the best-supported core locations are cytosol/cytoplasm, nucleus/telomeres, and spindle-associated sites.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The retrieved evidence supports a “multi-compartment” view of TNKS localization via partner-mediated recruitment:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
|
|
GO:0000209
protein polyubiquitination
|
IEA
GO_REF:0000117 |
MODIFY |
Summary: Protein polyubiquitination captures a downstream consequence of TNKS PARylation but misstates the direct TNKS activity.
Reason: TNKS does not function as the E3 ubiquitin ligase; it PARylates substrates that are then recognized by PAR-binding ubiquitin ligases such as RNF146.
Proposed replacements:
protein poly-ADP-ribosylation
NAD+ poly-ADP-ribosyltransferase activity
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The canonical E3 ligase is **RNF146**, described as a **PAR-directed E3** that binds PARylated substrates (via a PAR-binding WWE domain recognizing iso-ADP-ribose) and installs **K48-linked polyubiquitin chains**, driving proteasomal degradation. This underlies a major mechanism by which TNKS controls the abundance of multiple signaling proteins.
file:human/TNKS/TNKS-deep-research-falcon.md
Multiple retrieved sources state that **tankyrase PARylates AXIN (AXIN1/2)**, which promotes **RNF146-mediated ubiquitination** and **proteasomal degradation** of AXIN. Loss of AXIN destabilizes the destruction complex, thereby **stabilizing β-catenin** and increasing pathway output. Conversely, **tankyrase inhibition stabilizes AXIN** and reduces cytosolic β-catenin and β-catenin–dependent transcription.
|
|
GO:0000242
pericentriolar material
|
IEA
GO_REF:0000117 |
ACCEPT |
Summary: pericentriolar material localization is supported by TNKS spindle/centrosome-associated functions.
Reason: TNKS is recruited to spindle poles via NuMA and is required for NuMA PARylation and spindle organization.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
TNKS also targets proteins involved in mitosis. A structural/functional analysis in the retrieved corpus reports that **TNKS PARylates NuMA**, and further states that **TNKS1 (but not TNKS2)** is specifically required for NuMA PARylation and correct mitotic spindle organization.
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
|
|
GO:0000781
chromosome, telomeric region
|
IEA
GO_REF:0000120 |
ACCEPT |
Summary: Chromosome telomeric region localization is supported by TNKS recruitment through TRF1.
Reason: Telomere recruitment is one of the hallmark TNKS localization contexts.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
**Telomeres**: recruitment via the telomeric factor **TRF1** (consistent with roles in telomere biology).
|
|
GO:0000922
spindle pole
|
IEA
GO_REF:0000044 |
ACCEPT |
Summary: spindle pole localization is supported by TNKS spindle/centrosome-associated functions.
Reason: TNKS is recruited to spindle poles via NuMA and is required for NuMA PARylation and spindle organization.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
TNKS also targets proteins involved in mitosis. A structural/functional analysis in the retrieved corpus reports that **TNKS PARylates NuMA**, and further states that **TNKS1 (but not TNKS2)** is specifically required for NuMA PARylation and correct mitotic spindle organization.
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
|
|
GO:0003950
NAD+ poly-ADP-ribosyltransferase activity
|
IEA
GO_REF:0000120 |
ACCEPT |
Summary: NAD+ poly-ADP-ribosyltransferase activity is a core TNKS catalytic molecular function.
Reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and protein substrates, with acidic acceptor-residue specificity supported by recent structural synthesis.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme** that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent ubiquitination and turnover.
|
|
GO:0005635
nuclear envelope
|
IEA
GO_REF:0000117 |
KEEP AS NON CORE |
Summary: nuclear envelope is a plausible reported localization but not the dominant site of TNKS core activity.
Reason: TNKS has multi-compartment partner-mediated localization; the best-supported core locations are cytosol/cytoplasm, nucleus/telomeres, and spindle-associated sites.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The retrieved evidence supports a “multi-compartment” view of TNKS localization via partner-mediated recruitment:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
|
|
GO:0005643
nuclear pore
|
IEA
GO_REF:0000044 |
KEEP AS NON CORE |
Summary: nuclear pore is a plausible reported localization but not the dominant site of TNKS core activity.
Reason: TNKS has multi-compartment partner-mediated localization; the best-supported core locations are cytosol/cytoplasm, nucleus/telomeres, and spindle-associated sites.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The retrieved evidence supports a “multi-compartment” view of TNKS localization via partner-mediated recruitment:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
|
|
GO:0005737
cytoplasm
|
IEA
GO_REF:0000044 |
ACCEPT |
Summary: cytoplasm localization is consistent with TNKS multi-compartment activity.
Reason: TNKS acts in nuclear/telomeric and cytoplasmic signaling contexts, including Wnt pathway regulation.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The retrieved evidence supports a “multi-compartment” view of TNKS localization via partner-mediated recruitment:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
|
|
GO:0005813
centrosome
|
IEA
GO_REF:0000044 |
ACCEPT |
Summary: centrosome localization is supported by TNKS spindle/centrosome-associated functions.
Reason: TNKS is recruited to spindle poles via NuMA and is required for NuMA PARylation and spindle organization.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
TNKS also targets proteins involved in mitosis. A structural/functional analysis in the retrieved corpus reports that **TNKS PARylates NuMA**, and further states that **TNKS1 (but not TNKS2)** is specifically required for NuMA PARylation and correct mitotic spindle organization.
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
|
|
GO:0015031
protein transport
|
IEA
GO_REF:0000043 |
KEEP AS NON CORE |
Summary: protein transport is a context-specific transport-related role rather than the primary TNKS function.
Reason: Transport annotations are secondary to TNKS substrate PARylation and pathway regulation.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The retrieved evidence supports a “multi-compartment” view of TNKS localization via partner-mediated recruitment:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
|
|
GO:0016055
Wnt signaling pathway
|
IEA
GO_REF:0000043 |
ACCEPT |
Summary: Wnt signaling pathway is a canonical TNKS pathway output through AXIN PARylation.
Reason: TNKS PARylates AXIN1/2 to promote RNF146-dependent AXIN degradation, thereby increasing Wnt/beta-catenin pathway output.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
Multiple retrieved sources state that **tankyrase PARylates AXIN (AXIN1/2)**, which promotes **RNF146-mediated ubiquitination** and **proteasomal degradation** of AXIN. Loss of AXIN destabilizes the destruction complex, thereby **stabilizing β-catenin** and increasing pathway output. Conversely, **tankyrase inhibition stabilizes AXIN** and reduces cytosolic β-catenin and β-catenin–dependent transcription.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary pathway role:** TNKS1/2 control **Wnt/β-catenin signaling** by PARylating **AXIN1/2** to promote RNF146-dependent degradation; inhibition stabilizes AXIN and suppresses β-catenin output.
file:human/TNKS/TNKS-deep-research-falcon.md
The canonical E3 ligase is **RNF146**, described as a **PAR-directed E3** that binds PARylated substrates (via a PAR-binding WWE domain recognizing iso-ADP-ribose) and installs **K48-linked polyubiquitin chains**, driving proteasomal degradation. This underlies a major mechanism by which TNKS controls the abundance of multiple signaling proteins.
|
|
GO:0016740
transferase activity
|
IEA
GO_REF:0000043 |
MODIFY |
Summary: transferase activity is too broad for TNKS catalytic activity.
Reason: The supported activity is NAD+-dependent protein ADP-ribosyltransferase/poly-ADP-ribosyltransferase activity, not a generic transferase label.
Proposed replacements:
NAD+ poly-ADP-ribosyltransferase activity
NAD+-protein-aspartate ADP-ribosyltransferase activity
NAD+-protein-glutamate ADP-ribosyltransferase activity
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme** that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent ubiquitination and turnover.
|
|
GO:0016757
glycosyltransferase activity
|
IEA
GO_REF:0000043 |
MODIFY |
Summary: glycosyltransferase activity is too broad for TNKS catalytic activity.
Reason: The supported activity is NAD+-dependent protein ADP-ribosyltransferase/poly-ADP-ribosyltransferase activity, not a generic transferase label.
Proposed replacements:
NAD+ poly-ADP-ribosyltransferase activity
NAD+-protein-aspartate ADP-ribosyltransferase activity
NAD+-protein-glutamate ADP-ribosyltransferase activity
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme** that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent ubiquitination and turnover.
|
|
GO:0016779
nucleotidyltransferase activity
|
IEA
GO_REF:0000043 |
MODIFY |
Summary: nucleotidyltransferase activity is too broad for TNKS catalytic activity.
Reason: The supported activity is NAD+-dependent protein ADP-ribosyltransferase/poly-ADP-ribosyltransferase activity, not a generic transferase label.
Proposed replacements:
NAD+ poly-ADP-ribosyltransferase activity
NAD+-protein-aspartate ADP-ribosyltransferase activity
NAD+-protein-glutamate ADP-ribosyltransferase activity
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme** that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent ubiquitination and turnover.
|
|
GO:0032212
positive regulation of telomere maintenance via telomerase
|
IEA
GO_REF:0000117 |
ACCEPT |
Summary: positive regulation of telomere maintenance via telomerase is supported as a TNKS telomere-associated role.
Reason: TNKS is recruited to telomeres through TRF1 and regulates telomere-associated protein localization and telomere maintenance/capping outputs.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
**Telomeres**: recruitment via the telomeric factor **TRF1** (consistent with roles in telomere biology).
|
|
GO:0046872
metal ion binding
|
IEA
GO_REF:0000043 |
KEEP AS NON CORE |
Summary: metal ion binding is plausible as a structural/catalytic-site feature but is not the main function.
Reason: Recent structural synthesis supports a zinc-binding motif in the catalytic acceptor-site architecture, but the core molecular function is ADP-ribosyltransferase activity.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
|
|
GO:0051028
mRNA transport
|
IEA
GO_REF:0000043 |
KEEP AS NON CORE |
Summary: mRNA transport is a context-specific transport-related role rather than the primary TNKS function.
Reason: Transport annotations are secondary to TNKS substrate PARylation and pathway regulation.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The retrieved evidence supports a “multi-compartment” view of TNKS localization via partner-mediated recruitment:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
|
|
GO:0051301
cell division
|
IEA
GO_REF:0000043 |
KEEP AS NON CORE |
Summary: cell division is supported as a mitotic or telomere-cohesion output of TNKS activity.
Reason: These cell-cycle phenotypes are downstream of TNKS PARylation of substrates such as NuMA or telomere-associated factors, but the core activity is ADP-ribosyltransferase activity.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
TNKS also targets proteins involved in mitosis. A structural/functional analysis in the retrieved corpus reports that **TNKS PARylates NuMA**, and further states that **TNKS1 (but not TNKS2)** is specifically required for NuMA PARylation and correct mitotic spindle organization.
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
|
|
GO:0070198
protein localization to chromosome, telomeric region
|
IEA
GO_REF:0000117 |
ACCEPT |
Summary: protein localization to chromosome, telomeric region is supported as a TNKS telomere-associated role.
Reason: TNKS is recruited to telomeres through TRF1 and regulates telomere-associated protein localization and telomere maintenance/capping outputs.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
**Telomeres**: recruitment via the telomeric factor **TRF1** (consistent with roles in telomere biology).
|
|
GO:0070212
protein poly-ADP-ribosylation
|
IEA
GO_REF:0000117 |
ACCEPT |
Summary: protein poly-ADP-ribosylation is a direct TNKS catalytic process.
Reason: TNKS catalyzes protein PARylation and auto-PARylation of itself and binding partners.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme** that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent ubiquitination and turnover.
|
|
GO:0070213
protein auto-ADP-ribosylation
|
IEA
GO_REF:0000117 |
ACCEPT |
Summary: protein auto-ADP-ribosylation is a direct TNKS catalytic process.
Reason: TNKS catalyzes protein PARylation and auto-PARylation of itself and binding partners.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme** that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent ubiquitination and turnover.
|
|
GO:0090263
positive regulation of canonical Wnt signaling pathway
|
IEA
GO_REF:0000117 |
ACCEPT |
Summary: positive regulation of canonical Wnt signaling pathway is a canonical TNKS pathway output through AXIN PARylation.
Reason: TNKS PARylates AXIN1/2 to promote RNF146-dependent AXIN degradation, thereby increasing Wnt/beta-catenin pathway output.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
Multiple retrieved sources state that **tankyrase PARylates AXIN (AXIN1/2)**, which promotes **RNF146-mediated ubiquitination** and **proteasomal degradation** of AXIN. Loss of AXIN destabilizes the destruction complex, thereby **stabilizing β-catenin** and increasing pathway output. Conversely, **tankyrase inhibition stabilizes AXIN** and reduces cytosolic β-catenin and β-catenin–dependent transcription.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary pathway role:** TNKS1/2 control **Wnt/β-catenin signaling** by PARylating **AXIN1/2** to promote RNF146-dependent degradation; inhibition stabilizes AXIN and suppresses β-catenin output.
file:human/TNKS/TNKS-deep-research-falcon.md
The canonical E3 ligase is **RNF146**, described as a **PAR-directed E3** that binds PARylated substrates (via a PAR-binding WWE domain recognizing iso-ADP-ribose) and installs **K48-linked polyubiquitin chains**, driving proteasomal degradation. This underlies a major mechanism by which TNKS controls the abundance of multiple signaling proteins.
|
|
GO:0140806
NAD+-protein-aspartate ADP-ribosyltransferase activity
|
IEA
GO_REF:0000116 |
ACCEPT |
Summary: NAD+-protein-aspartate ADP-ribosyltransferase activity is a core TNKS catalytic molecular function.
Reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and protein substrates, with acidic acceptor-residue specificity supported by recent structural synthesis.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme** that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent ubiquitination and turnover.
|
|
GO:0140807
NAD+-protein-glutamate ADP-ribosyltransferase activity
|
IEA
GO_REF:0000116 |
ACCEPT |
Summary: NAD+-protein-glutamate ADP-ribosyltransferase activity is a core TNKS catalytic molecular function.
Reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and protein substrates, with acidic acceptor-residue specificity supported by recent structural synthesis.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme** that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent ubiquitination and turnover.
|
|
GO:1904355
positive regulation of telomere capping
|
IEA
GO_REF:0000117 |
ACCEPT |
Summary: positive regulation of telomere capping is supported as a TNKS telomere-associated role.
Reason: TNKS is recruited to telomeres through TRF1 and regulates telomere-associated protein localization and telomere maintenance/capping outputs.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
**Telomeres**: recruitment via the telomeric factor **TRF1** (consistent with roles in telomere biology).
|
|
GO:1904357
negative regulation of telomere maintenance via telomere lengthening
|
IEA
GO_REF:0000117 |
MARK AS OVER ANNOTATED |
Summary: Negative regulation of telomere maintenance via telomere lengthening is not justified by the current TNKS synthesis.
Reason: Canonical TNKS/TRF1 evidence supports release of TRF1 from telomeres and promotion of telomere elongation; the negative-direction annotation should not be accepted without context-specific evidence.
Proposed replacements:
positive regulation of telomere maintenance via telomere lengthening
positive regulation of telomere maintenance via telomerase
Supporting Evidence:
PMID:12782650
ADP-ribosylation of TRF1 by tankyrase 1 released TRF1 from telomeres and promoted telomere elongation.
file:human/TNKS/TNKS-deep-research-falcon.md
**Telomeres**: recruitment via the telomeric factor **TRF1** (consistent with roles in telomere biology).
|
|
GO:1990404
NAD+-protein mono-ADP-ribosyltransferase activity
|
IEA
GO_REF:0000117 |
ACCEPT |
Summary: NAD+-protein mono-ADP-ribosyltransferase activity is a core TNKS catalytic molecular function.
Reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and protein substrates, with acidic acceptor-residue specificity supported by recent structural synthesis.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme** that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent ubiquitination and turnover.
|
|
GO:0005515
protein binding
|
IPI
PMID:12080061 Identification of a tankyrase-binding motif shared by IRAP, ... |
MARK AS OVER ANNOTATED |
Summary: Protein binding is supported but too generic for TNKS substrate recognition.
Reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
Tankyrase-1 is a **multidomain “scaffold-enzyme”**:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
|
|
GO:0005515
protein binding
|
IPI
PMID:14596906 The formin-binding protein 17, FBP17, binds via a TNKS bindi... |
MARK AS OVER ANNOTATED |
Summary: Protein binding is supported but too generic for TNKS substrate recognition.
Reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
Tankyrase-1 is a **multidomain “scaffold-enzyme”**:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
|
|
GO:0005515
protein binding
|
IPI
PMID:17003112 Posttranslational hydroxylation of ankyrin repeats in Ikappa... |
MARK AS OVER ANNOTATED |
Summary: Protein binding is supported but too generic for TNKS substrate recognition.
Reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
Tankyrase-1 is a **multidomain “scaffold-enzyme”**:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
|
|
GO:0005515
protein binding
|
IPI
PMID:17043677 Disrupted in Schizophrenia 1 Interactome: evidence for the c... |
MARK AS OVER ANNOTATED |
Summary: Protein binding is supported but too generic for TNKS substrate recognition.
Reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
Tankyrase-1 is a **multidomain “scaffold-enzyme”**:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
|
|
GO:0005515
protein binding
|
IPI
PMID:19759537 Tankyrase inhibition stabilizes axin and antagonizes Wnt sig... |
MARK AS OVER ANNOTATED |
Summary: Protein binding is supported but too generic for TNKS substrate recognition.
Reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
Tankyrase-1 is a **multidomain “scaffold-enzyme”**:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
|
|
GO:0005515
protein binding
|
IPI
PMID:20696165 Tankyrase-1 assembly to large protein complexes blocks its t... |
MARK AS OVER ANNOTATED |
Summary: Protein binding is supported but too generic for TNKS substrate recognition.
Reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
Tankyrase-1 is a **multidomain “scaffold-enzyme”**:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
|
|
GO:0005515
protein binding
|
IPI
PMID:21251231 Factor-inhibiting hypoxia-inducible factor (FIH) catalyses t... |
MARK AS OVER ANNOTATED |
Summary: Protein binding is supported but too generic for TNKS substrate recognition.
Reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
Tankyrase-1 is a **multidomain “scaffold-enzyme”**:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
|
|
GO:0005515
protein binding
|
IPI
PMID:21799911 Ubiquitin ligase RNF146 regulates tankyrase and Axin to prom... |
MARK AS OVER ANNOTATED |
Summary: Protein binding is supported but too generic for TNKS substrate recognition.
Reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
Tankyrase-1 is a **multidomain “scaffold-enzyme”**:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
|
|
GO:0005515
protein binding
|
IPI
PMID:22699936 Tankyrase 1 regulates centrosome function by controlling CPA... |
MARK AS OVER ANNOTATED |
Summary: Protein binding is supported but too generic for TNKS substrate recognition.
Reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
Tankyrase-1 is a **multidomain “scaffold-enzyme”**:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
|
|
GO:0005515
protein binding
|
IPI
PMID:25327252 Allosteric activation of the RNF146 ubiquitin ligase by a po... |
MARK AS OVER ANNOTATED |
Summary: Protein binding is supported but too generic for TNKS substrate recognition.
Reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
Tankyrase-1 is a **multidomain “scaffold-enzyme”**:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
|
|
GO:0005515
protein binding
|
IPI
PMID:26373281 Loss of ATRX Suppresses Resolution of Telomere Cohesion to C... |
MARK AS OVER ANNOTATED |
Summary: Protein binding is supported but too generic for TNKS substrate recognition.
Reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
Tankyrase-1 is a **multidomain “scaffold-enzyme”**:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
|
|
GO:0005515
protein binding
|
IPI
PMID:26496610 A human interactome in three quantitative dimensions organiz... |
MARK AS OVER ANNOTATED |
Summary: Protein binding is supported but too generic for TNKS substrate recognition.
Reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
Tankyrase-1 is a **multidomain “scaffold-enzyme”**:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
|
|
GO:0005515
protein binding
|
IPI
PMID:26972000 Substrate-Trapped Interactors of PHD3 and FIH Cluster in Dis... |
MARK AS OVER ANNOTATED |
Summary: Protein binding is supported but too generic for TNKS substrate recognition.
Reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
Tankyrase-1 is a **multidomain “scaffold-enzyme”**:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
|
|
GO:0005515
protein binding
|
IPI
PMID:28514442 Architecture of the human interactome defines protein commun... |
MARK AS OVER ANNOTATED |
Summary: Protein binding is supported but too generic for TNKS substrate recognition.
Reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
Tankyrase-1 is a **multidomain “scaffold-enzyme”**:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
|
|
GO:0005515
protein binding
|
IPI
PMID:31413325 HENA, heterogeneous network-based data set for Alzheimer's d... |
MARK AS OVER ANNOTATED |
Summary: Protein binding is supported but too generic for TNKS substrate recognition.
Reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
Tankyrase-1 is a **multidomain “scaffold-enzyme”**:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
|
|
GO:0005515
protein binding
|
IPI
PMID:32296183 A reference map of the human binary protein interactome. |
MARK AS OVER ANNOTATED |
Summary: Protein binding is supported but too generic for TNKS substrate recognition.
Reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
Tankyrase-1 is a **multidomain “scaffold-enzyme”**:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
|
|
GO:0005515
protein binding
|
IPI
PMID:33961781 Dual proteome-scale networks reveal cell-specific remodeling... |
MARK AS OVER ANNOTATED |
Summary: Protein binding is supported but too generic for TNKS substrate recognition.
Reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
Tankyrase-1 is a **multidomain “scaffold-enzyme”**:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
|
|
GO:0005515
protein binding
|
IPI
PMID:40205054 Multimodal cell maps as a foundation for structural and func... |
MARK AS OVER ANNOTATED |
Summary: Protein binding is supported but too generic for TNKS substrate recognition.
Reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
Tankyrase-1 is a **multidomain “scaffold-enzyme”**:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
|
|
GO:0005829
cytosol
|
IEA
GO_REF:0000107 |
ACCEPT |
Summary: cytosol localization is consistent with TNKS multi-compartment activity.
Reason: TNKS acts in nuclear/telomeric and cytoplasmic signaling contexts, including Wnt pathway regulation.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The retrieved evidence supports a “multi-compartment” view of TNKS localization via partner-mediated recruitment:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
|
|
GO:0090263
positive regulation of canonical Wnt signaling pathway
|
TAS
Reactome:R-HSA-4641257 |
ACCEPT |
Summary: positive regulation of canonical Wnt signaling pathway is a canonical TNKS pathway output through AXIN PARylation.
Reason: TNKS PARylates AXIN1/2 to promote RNF146-dependent AXIN degradation, thereby increasing Wnt/beta-catenin pathway output.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
Multiple retrieved sources state that **tankyrase PARylates AXIN (AXIN1/2)**, which promotes **RNF146-mediated ubiquitination** and **proteasomal degradation** of AXIN. Loss of AXIN destabilizes the destruction complex, thereby **stabilizing β-catenin** and increasing pathway output. Conversely, **tankyrase inhibition stabilizes AXIN** and reduces cytosolic β-catenin and β-catenin–dependent transcription.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary pathway role:** TNKS1/2 control **Wnt/β-catenin signaling** by PARylating **AXIN1/2** to promote RNF146-dependent degradation; inhibition stabilizes AXIN and suppresses β-catenin output.
file:human/TNKS/TNKS-deep-research-falcon.md
The canonical E3 ligase is **RNF146**, described as a **PAR-directed E3** that binds PARylated substrates (via a PAR-binding WWE domain recognizing iso-ADP-ribose) and installs **K48-linked polyubiquitin chains**, driving proteasomal degradation. This underlies a major mechanism by which TNKS controls the abundance of multiple signaling proteins.
|
|
GO:0003950
NAD+ poly-ADP-ribosyltransferase activity
|
TAS
Reactome:R-HSA-3640858 |
ACCEPT |
Summary: NAD+ poly-ADP-ribosyltransferase activity is a core TNKS catalytic molecular function.
Reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and protein substrates, with acidic acceptor-residue specificity supported by recent structural synthesis.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme** that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent ubiquitination and turnover.
|
|
GO:0003950
NAD+ poly-ADP-ribosyltransferase activity
|
TAS
Reactome:R-HSA-8948800 |
ACCEPT |
Summary: NAD+ poly-ADP-ribosyltransferase activity is a core TNKS catalytic molecular function.
Reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and protein substrates, with acidic acceptor-residue specificity supported by recent structural synthesis.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme** that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent ubiquitination and turnover.
|
|
GO:0010521
telomerase inhibitor activity
|
IMP
PMID:25939383 Disruption of Wnt/β-Catenin Signaling and Telomeric Shorteni... |
MARK AS OVER ANNOTATED |
Summary: Telomerase inhibitor activity is not the best direct molecular-function description for TNKS.
Reason: TNKS regulates telomere maintenance through PARylation of telomere-associated proteins such as TRF1; the direct activity should be represented as ADP-ribosyltransferase activity and telomere-maintenance processes.
Proposed replacements:
NAD+ poly-ADP-ribosyltransferase activity
NAD+-protein-aspartate ADP-ribosyltransferase activity
NAD+-protein-glutamate ADP-ribosyltransferase activity
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme** that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent ubiquitination and turnover.
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
**Telomeres**: recruitment via the telomeric factor **TRF1** (consistent with roles in telomere biology).
|
|
GO:0010521
telomerase inhibitor activity
|
IDA
PMID:9822378 Tankyrase, a poly(ADP-ribose) polymerase at human telomeres. |
MARK AS OVER ANNOTATED |
Summary: Telomerase inhibitor activity is not the best direct molecular-function description for TNKS.
Reason: TNKS regulates telomere maintenance through PARylation of telomere-associated proteins such as TRF1; the direct activity should be represented as ADP-ribosyltransferase activity and telomere-maintenance processes.
Proposed replacements:
NAD+ poly-ADP-ribosyltransferase activity
NAD+-protein-aspartate ADP-ribosyltransferase activity
NAD+-protein-glutamate ADP-ribosyltransferase activity
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme** that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent ubiquitination and turnover.
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
**Telomeres**: recruitment via the telomeric factor **TRF1** (consistent with roles in telomere biology).
|
|
GO:0032210
regulation of telomere maintenance via telomerase
|
IDA
PMID:9822378 Tankyrase, a poly(ADP-ribose) polymerase at human telomeres. |
ACCEPT |
Summary: regulation of telomere maintenance via telomerase is supported as a TNKS telomere-associated role.
Reason: TNKS is recruited to telomeres through TRF1 and regulates telomere-associated protein localization and telomere maintenance/capping outputs.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
**Telomeres**: recruitment via the telomeric factor **TRF1** (consistent with roles in telomere biology).
|
|
GO:1904358
positive regulation of telomere maintenance via telomere lengthening
|
IDA
PMID:12782650 TRF1 is degraded by ubiquitin-mediated proteolysis after rel... |
ACCEPT |
Summary: positive regulation of telomere maintenance via telomere lengthening is supported as a TNKS telomere-associated role.
Reason: TNKS is recruited to telomeres through TRF1 and regulates telomere-associated protein localization and telomere maintenance/capping outputs.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
**Telomeres**: recruitment via the telomeric factor **TRF1** (consistent with roles in telomere biology).
|
|
GO:1990404
NAD+-protein mono-ADP-ribosyltransferase activity
|
IDA
PMID:15133513 TIN2 is a tankyrase 1 PARP modulator in the TRF1 telomere le... |
ACCEPT |
Summary: NAD+-protein mono-ADP-ribosyltransferase activity is a core TNKS catalytic molecular function.
Reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and protein substrates, with acidic acceptor-residue specificity supported by recent structural synthesis.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme** that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent ubiquitination and turnover.
|
|
GO:1990404
NAD+-protein mono-ADP-ribosyltransferase activity
|
IDA
PMID:9822378 Tankyrase, a poly(ADP-ribose) polymerase at human telomeres. |
ACCEPT |
Summary: NAD+-protein mono-ADP-ribosyltransferase activity is a core TNKS catalytic molecular function.
Reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and protein substrates, with acidic acceptor-residue specificity supported by recent structural synthesis.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme** that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent ubiquitination and turnover.
|
|
GO:0070212
protein poly-ADP-ribosylation
|
IDA
PMID:25043379 Family-wide analysis of poly(ADP-ribose) polymerase activity... |
ACCEPT |
Summary: protein poly-ADP-ribosylation is a direct TNKS catalytic process.
Reason: TNKS catalyzes protein PARylation and auto-PARylation of itself and binding partners.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme** that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent ubiquitination and turnover.
|
|
GO:1990404
NAD+-protein mono-ADP-ribosyltransferase activity
|
IDA
PMID:25043379 Family-wide analysis of poly(ADP-ribose) polymerase activity... |
ACCEPT |
Summary: NAD+-protein mono-ADP-ribosyltransferase activity is a core TNKS catalytic molecular function.
Reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and protein substrates, with acidic acceptor-residue specificity supported by recent structural synthesis.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme** that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent ubiquitination and turnover.
|
|
GO:0003950
NAD+ poly-ADP-ribosyltransferase activity
|
IDA
PMID:16076287 NuMA is a major acceptor of poly(ADP-ribosyl)ation by tankyr... |
ACCEPT |
Summary: NAD+ poly-ADP-ribosyltransferase activity is a core TNKS catalytic molecular function.
Reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and protein substrates, with acidic acceptor-residue specificity supported by recent structural synthesis.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme** that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent ubiquitination and turnover.
|
|
GO:0005515
protein binding
|
IPI
PMID:16076287 NuMA is a major acceptor of poly(ADP-ribosyl)ation by tankyr... |
MARK AS OVER ANNOTATED |
Summary: Protein binding is supported but too generic for TNKS substrate recognition.
Reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
Tankyrase-1 is a **multidomain “scaffold-enzyme”**:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
|
|
GO:0070212
protein poly-ADP-ribosylation
|
IDA
PMID:16076287 NuMA is a major acceptor of poly(ADP-ribosyl)ation by tankyr... |
ACCEPT |
Summary: protein poly-ADP-ribosylation is a direct TNKS catalytic process.
Reason: TNKS catalyzes protein PARylation and auto-PARylation of itself and binding partners.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme** that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent ubiquitination and turnover.
|
|
GO:0097431
mitotic spindle pole
|
IDA
PMID:16076287 NuMA is a major acceptor of poly(ADP-ribosyl)ation by tankyr... |
ACCEPT |
Summary: mitotic spindle pole localization is supported by TNKS spindle/centrosome-associated functions.
Reason: TNKS is recruited to spindle poles via NuMA and is required for NuMA PARylation and spindle organization.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
TNKS also targets proteins involved in mitosis. A structural/functional analysis in the retrieved corpus reports that **TNKS PARylates NuMA**, and further states that **TNKS1 (but not TNKS2)** is specifically required for NuMA PARylation and correct mitotic spindle organization.
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
|
|
GO:0005515
protein binding
|
IPI
PMID:11854288 The telomeric poly(ADP-ribose) polymerase, tankyrase 1, cont... |
MARK AS OVER ANNOTATED |
Summary: Protein binding is supported but too generic for TNKS substrate recognition.
Reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
Tankyrase-1 is a **multidomain “scaffold-enzyme”**:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
|
|
GO:0003950
NAD+ poly-ADP-ribosyltransferase activity
|
IDA
PMID:11854288 The telomeric poly(ADP-ribose) polymerase, tankyrase 1, cont... |
ACCEPT |
Summary: NAD+ poly-ADP-ribosyltransferase activity is a core TNKS catalytic molecular function.
Reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and protein substrates, with acidic acceptor-residue specificity supported by recent structural synthesis.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme** that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent ubiquitination and turnover.
|
|
GO:1904908
negative regulation of maintenance of mitotic sister chromatid cohesion, telomeric
|
IMP
PMID:26373281 Loss of ATRX Suppresses Resolution of Telomere Cohesion to C... |
KEEP AS NON CORE |
Summary: negative regulation of maintenance of mitotic sister chromatid cohesion, telomeric is supported as a mitotic or telomere-cohesion output of TNKS activity.
Reason: These cell-cycle phenotypes are downstream of TNKS PARylation of substrates such as NuMA or telomere-associated factors, but the core activity is ADP-ribosyltransferase activity.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
TNKS also targets proteins involved in mitosis. A structural/functional analysis in the retrieved corpus reports that **TNKS PARylates NuMA**, and further states that **TNKS1 (but not TNKS2)** is specifically required for NuMA PARylation and correct mitotic spindle organization.
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
|
|
GO:0000781
chromosome, telomeric region
|
IDA
PMID:9822378 Tankyrase, a poly(ADP-ribose) polymerase at human telomeres. |
ACCEPT |
Summary: Chromosome telomeric region localization is supported by TNKS recruitment through TRF1.
Reason: Telomere recruitment is one of the hallmark TNKS localization contexts.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
**Telomeres**: recruitment via the telomeric factor **TRF1** (consistent with roles in telomere biology).
|
|
GO:0042393
histone binding
|
IPI
PMID:26373281 Loss of ATRX Suppresses Resolution of Telomere Cohesion to C... |
KEEP AS NON CORE |
Summary: Histone binding is supported in a telomere-cohesion context but is secondary to TNKS ADP-ribosyltransferase function.
Reason: This interaction fits a specialized telomere/chromatin context rather than the primary TNKS catalytic function.
Supporting Evidence:
PMID:26373281
In the absence of ATRX, the histone variant macroH2A1.1 binds to the poly(ADP-ribose) polymerase tankyrase 1, preventing it from localizing to telomeres and resolving cohesion.
|
|
GO:0005515
protein binding
|
IPI
PMID:15133513 TIN2 is a tankyrase 1 PARP modulator in the TRF1 telomere le... |
MARK AS OVER ANNOTATED |
Summary: Protein binding is supported but too generic for TNKS substrate recognition.
Reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
Tankyrase-1 is a **multidomain “scaffold-enzyme”**:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
|
|
GO:0032212
positive regulation of telomere maintenance via telomerase
|
IDA
PMID:12782650 TRF1 is degraded by ubiquitin-mediated proteolysis after rel... |
ACCEPT |
Summary: positive regulation of telomere maintenance via telomerase is supported as a TNKS telomere-associated role.
Reason: TNKS is recruited to telomeres through TRF1 and regulates telomere-associated protein localization and telomere maintenance/capping outputs.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
**Telomeres**: recruitment via the telomeric factor **TRF1** (consistent with roles in telomere biology).
|
|
GO:0070198
protein localization to chromosome, telomeric region
|
IMP
PMID:15133513 TIN2 is a tankyrase 1 PARP modulator in the TRF1 telomere le... |
ACCEPT |
Summary: protein localization to chromosome, telomeric region is supported as a TNKS telomere-associated role.
Reason: TNKS is recruited to telomeres through TRF1 and regulates telomere-associated protein localization and telomere maintenance/capping outputs.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
**Telomeres**: recruitment via the telomeric factor **TRF1** (consistent with roles in telomere biology).
|
|
GO:0070212
protein poly-ADP-ribosylation
|
IMP
PMID:25939383 Disruption of Wnt/β-Catenin Signaling and Telomeric Shorteni... |
ACCEPT |
Summary: protein poly-ADP-ribosylation is a direct TNKS catalytic process.
Reason: TNKS catalyzes protein PARylation and auto-PARylation of itself and binding partners.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme** that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent ubiquitination and turnover.
|
|
GO:0070212
protein poly-ADP-ribosylation
|
IDA
PMID:9822378 Tankyrase, a poly(ADP-ribose) polymerase at human telomeres. |
ACCEPT |
Summary: protein poly-ADP-ribosylation is a direct TNKS catalytic process.
Reason: TNKS catalyzes protein PARylation and auto-PARylation of itself and binding partners.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme** that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent ubiquitination and turnover.
|
|
GO:1904357
negative regulation of telomere maintenance via telomere lengthening
|
IMP
PMID:25939383 Disruption of Wnt/β-Catenin Signaling and Telomeric Shorteni... |
MARK AS OVER ANNOTATED |
Summary: Negative regulation of telomere maintenance via telomere lengthening is not justified by the current TNKS synthesis.
Reason: Canonical TNKS/TRF1 evidence supports release of TRF1 from telomeres and promotion of telomere elongation; the negative-direction annotation should not be accepted without context-specific evidence.
Proposed replacements:
positive regulation of telomere maintenance via telomere lengthening
positive regulation of telomere maintenance via telomerase
Supporting Evidence:
PMID:12782650
ADP-ribosylation of TRF1 by tankyrase 1 released TRF1 from telomeres and promoted telomere elongation.
file:human/TNKS/TNKS-deep-research-falcon.md
**Telomeres**: recruitment via the telomeric factor **TRF1** (consistent with roles in telomere biology).
|
|
GO:0090263
positive regulation of canonical Wnt signaling pathway
|
IMP
PMID:25939383 Disruption of Wnt/β-Catenin Signaling and Telomeric Shorteni... |
ACCEPT |
Summary: positive regulation of canonical Wnt signaling pathway is a canonical TNKS pathway output through AXIN PARylation.
Reason: TNKS PARylates AXIN1/2 to promote RNF146-dependent AXIN degradation, thereby increasing Wnt/beta-catenin pathway output.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
Multiple retrieved sources state that **tankyrase PARylates AXIN (AXIN1/2)**, which promotes **RNF146-mediated ubiquitination** and **proteasomal degradation** of AXIN. Loss of AXIN destabilizes the destruction complex, thereby **stabilizing β-catenin** and increasing pathway output. Conversely, **tankyrase inhibition stabilizes AXIN** and reduces cytosolic β-catenin and β-catenin–dependent transcription.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary pathway role:** TNKS1/2 control **Wnt/β-catenin signaling** by PARylating **AXIN1/2** to promote RNF146-dependent degradation; inhibition stabilizes AXIN and suppresses β-catenin output.
file:human/TNKS/TNKS-deep-research-falcon.md
The canonical E3 ligase is **RNF146**, described as a **PAR-directed E3** that binds PARylated substrates (via a PAR-binding WWE domain recognizing iso-ADP-ribose) and installs **K48-linked polyubiquitin chains**, driving proteasomal degradation. This underlies a major mechanism by which TNKS controls the abundance of multiple signaling proteins.
|
|
GO:1904355
positive regulation of telomere capping
|
IMP
PMID:25939383 Disruption of Wnt/β-Catenin Signaling and Telomeric Shorteni... |
ACCEPT |
Summary: positive regulation of telomere capping is supported as a TNKS telomere-associated role.
Reason: TNKS is recruited to telomeres through TRF1 and regulates telomere-associated protein localization and telomere maintenance/capping outputs.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
**Telomeres**: recruitment via the telomeric factor **TRF1** (consistent with roles in telomere biology).
|
|
GO:0003950
NAD+ poly-ADP-ribosyltransferase activity
|
IDA
PMID:21270334 Poly(ADP-ribose) polymerase 3 (PARP3), a newcomer in cellula... |
ACCEPT |
Summary: NAD+ poly-ADP-ribosyltransferase activity is a core TNKS catalytic molecular function.
Reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and protein substrates, with acidic acceptor-residue specificity supported by recent structural synthesis.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme** that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent ubiquitination and turnover.
|
|
GO:0005829
cytosol
|
TAS
Reactome:R-HSA-3640844 |
ACCEPT |
Summary: cytosol localization is consistent with TNKS multi-compartment activity.
Reason: TNKS acts in nuclear/telomeric and cytoplasmic signaling contexts, including Wnt pathway regulation.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The retrieved evidence supports a “multi-compartment” view of TNKS localization via partner-mediated recruitment:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
|
|
GO:0005829
cytosol
|
TAS
Reactome:R-HSA-3640858 |
ACCEPT |
Summary: cytosol localization is consistent with TNKS multi-compartment activity.
Reason: TNKS acts in nuclear/telomeric and cytoplasmic signaling contexts, including Wnt pathway regulation.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The retrieved evidence supports a “multi-compartment” view of TNKS localization via partner-mediated recruitment:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
|
|
GO:0005829
cytosol
|
TAS
Reactome:R-HSA-3640861 |
ACCEPT |
Summary: cytosol localization is consistent with TNKS multi-compartment activity.
Reason: TNKS acts in nuclear/telomeric and cytoplasmic signaling contexts, including Wnt pathway regulation.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The retrieved evidence supports a “multi-compartment” view of TNKS localization via partner-mediated recruitment:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
|
|
GO:0005829
cytosol
|
TAS
Reactome:R-HSA-3640862 |
ACCEPT |
Summary: cytosol localization is consistent with TNKS multi-compartment activity.
Reason: TNKS acts in nuclear/telomeric and cytoplasmic signaling contexts, including Wnt pathway regulation.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The retrieved evidence supports a “multi-compartment” view of TNKS localization via partner-mediated recruitment:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
|
|
GO:0005829
cytosol
|
TAS
Reactome:R-HSA-3640872 |
ACCEPT |
Summary: cytosol localization is consistent with TNKS multi-compartment activity.
Reason: TNKS acts in nuclear/telomeric and cytoplasmic signaling contexts, including Wnt pathway regulation.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The retrieved evidence supports a “multi-compartment” view of TNKS localization via partner-mediated recruitment:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
|
|
GO:0005829
cytosol
|
TAS
Reactome:R-HSA-3640874 |
ACCEPT |
Summary: cytosol localization is consistent with TNKS multi-compartment activity.
Reason: TNKS acts in nuclear/telomeric and cytoplasmic signaling contexts, including Wnt pathway regulation.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The retrieved evidence supports a “multi-compartment” view of TNKS localization via partner-mediated recruitment:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
|
|
GO:0005829
cytosol
|
TAS
Reactome:R-HSA-5262606 |
ACCEPT |
Summary: cytosol localization is consistent with TNKS multi-compartment activity.
Reason: TNKS acts in nuclear/telomeric and cytoplasmic signaling contexts, including Wnt pathway regulation.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The retrieved evidence supports a “multi-compartment” view of TNKS localization via partner-mediated recruitment:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
|
|
GO:0005829
cytosol
|
TAS
Reactome:R-HSA-8948800 |
ACCEPT |
Summary: cytosol localization is consistent with TNKS multi-compartment activity.
Reason: TNKS acts in nuclear/telomeric and cytoplasmic signaling contexts, including Wnt pathway regulation.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The retrieved evidence supports a “multi-compartment” view of TNKS localization via partner-mediated recruitment:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
|
|
GO:0003950
NAD+ poly-ADP-ribosyltransferase activity
|
IDA
PMID:22864114 Poly-ADP ribosylation of Miki by tankyrase-1 promotes centro... |
ACCEPT |
Summary: NAD+ poly-ADP-ribosyltransferase activity is a core TNKS catalytic molecular function.
Reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and protein substrates, with acidic acceptor-residue specificity supported by recent structural synthesis.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme** that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent ubiquitination and turnover.
|
|
GO:0005515
protein binding
|
IPI
PMID:22864114 Poly-ADP ribosylation of Miki by tankyrase-1 promotes centro... |
MARK AS OVER ANNOTATED |
Summary: Protein binding is supported but too generic for TNKS substrate recognition.
Reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
Tankyrase-1 is a **multidomain “scaffold-enzyme”**:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
|
|
GO:0005794
Golgi apparatus
|
IDA
PMID:22864114 Poly-ADP ribosylation of Miki by tankyrase-1 promotes centro... |
KEEP AS NON CORE |
Summary: Golgi apparatus is a plausible reported localization but not the dominant site of TNKS core activity.
Reason: TNKS has multi-compartment partner-mediated localization; the best-supported core locations are cytosol/cytoplasm, nucleus/telomeres, and spindle-associated sites.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The retrieved evidence supports a “multi-compartment” view of TNKS localization via partner-mediated recruitment:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
|
|
GO:0045944
positive regulation of transcription by RNA polymerase II
|
IDA
PMID:19245366 MYPT1, the targeting subunit of smooth-muscle myosin phospha... |
KEEP AS NON CORE |
Summary: Positive regulation of transcription by RNA polymerase II is an indirect Wnt/beta-catenin or YAP pathway output.
Reason: TNKS regulates transcriptional outputs indirectly by PARylating pathway regulators such as AXIN rather than functioning as a transcription factor.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
Multiple retrieved sources state that **tankyrase PARylates AXIN (AXIN1/2)**, which promotes **RNF146-mediated ubiquitination** and **proteasomal degradation** of AXIN. Loss of AXIN destabilizes the destruction complex, thereby **stabilizing β-catenin** and increasing pathway output. Conversely, **tankyrase inhibition stabilizes AXIN** and reduces cytosolic β-catenin and β-catenin–dependent transcription.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary pathway role:** TNKS1/2 control **Wnt/β-catenin signaling** by PARylating **AXIN1/2** to promote RNF146-dependent degradation; inhibition stabilizes AXIN and suppresses β-catenin output.
file:human/TNKS/TNKS-deep-research-falcon.md
The canonical E3 ligase is **RNF146**, described as a **PAR-directed E3** that binds PARylated substrates (via a PAR-binding WWE domain recognizing iso-ADP-ribose) and installs **K48-linked polyubiquitin chains**, driving proteasomal degradation. This underlies a major mechanism by which TNKS controls the abundance of multiple signaling proteins.
|
|
GO:0000209
protein polyubiquitination
|
IDA
PMID:19759537 Tankyrase inhibition stabilizes axin and antagonizes Wnt sig... |
MODIFY |
Summary: Protein polyubiquitination captures a downstream consequence of TNKS PARylation but misstates the direct TNKS activity.
Reason: TNKS does not function as the E3 ubiquitin ligase; it PARylates substrates that are then recognized by PAR-binding ubiquitin ligases such as RNF146.
Proposed replacements:
protein poly-ADP-ribosylation
NAD+ poly-ADP-ribosyltransferase activity
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The canonical E3 ligase is **RNF146**, described as a **PAR-directed E3** that binds PARylated substrates (via a PAR-binding WWE domain recognizing iso-ADP-ribose) and installs **K48-linked polyubiquitin chains**, driving proteasomal degradation. This underlies a major mechanism by which TNKS controls the abundance of multiple signaling proteins.
file:human/TNKS/TNKS-deep-research-falcon.md
Multiple retrieved sources state that **tankyrase PARylates AXIN (AXIN1/2)**, which promotes **RNF146-mediated ubiquitination** and **proteasomal degradation** of AXIN. Loss of AXIN destabilizes the destruction complex, thereby **stabilizing β-catenin** and increasing pathway output. Conversely, **tankyrase inhibition stabilizes AXIN** and reduces cytosolic β-catenin and β-catenin–dependent transcription.
|
|
GO:0000209
protein polyubiquitination
|
IDA
PMID:21478859 RNF146 is a poly(ADP-ribose)-directed E3 ligase that regulat... |
MODIFY |
Summary: Protein polyubiquitination captures a downstream consequence of TNKS PARylation but misstates the direct TNKS activity.
Reason: TNKS does not function as the E3 ubiquitin ligase; it PARylates substrates that are then recognized by PAR-binding ubiquitin ligases such as RNF146.
Proposed replacements:
protein poly-ADP-ribosylation
NAD+ poly-ADP-ribosyltransferase activity
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The canonical E3 ligase is **RNF146**, described as a **PAR-directed E3** that binds PARylated substrates (via a PAR-binding WWE domain recognizing iso-ADP-ribose) and installs **K48-linked polyubiquitin chains**, driving proteasomal degradation. This underlies a major mechanism by which TNKS controls the abundance of multiple signaling proteins.
file:human/TNKS/TNKS-deep-research-falcon.md
Multiple retrieved sources state that **tankyrase PARylates AXIN (AXIN1/2)**, which promotes **RNF146-mediated ubiquitination** and **proteasomal degradation** of AXIN. Loss of AXIN destabilizes the destruction complex, thereby **stabilizing β-catenin** and increasing pathway output. Conversely, **tankyrase inhibition stabilizes AXIN** and reduces cytosolic β-catenin and β-catenin–dependent transcription.
|
|
GO:0003950
NAD+ poly-ADP-ribosyltransferase activity
|
IDA
PMID:19759537 Tankyrase inhibition stabilizes axin and antagonizes Wnt sig... |
ACCEPT |
Summary: NAD+ poly-ADP-ribosyltransferase activity is a core TNKS catalytic molecular function.
Reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and protein substrates, with acidic acceptor-residue specificity supported by recent structural synthesis.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme** that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent ubiquitination and turnover.
|
|
GO:0003950
NAD+ poly-ADP-ribosyltransferase activity
|
IDA
PMID:21478859 RNF146 is a poly(ADP-ribose)-directed E3 ligase that regulat... |
ACCEPT |
Summary: NAD+ poly-ADP-ribosyltransferase activity is a core TNKS catalytic molecular function.
Reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and protein substrates, with acidic acceptor-residue specificity supported by recent structural synthesis.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme** that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent ubiquitination and turnover.
|
|
GO:0005515
protein binding
|
IPI
PMID:21478859 RNF146 is a poly(ADP-ribose)-directed E3 ligase that regulat... |
MARK AS OVER ANNOTATED |
Summary: Protein binding is supported but too generic for TNKS substrate recognition.
Reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
Tankyrase-1 is a **multidomain “scaffold-enzyme”**:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
|
|
GO:0070213
protein auto-ADP-ribosylation
|
IDA
PMID:21478859 RNF146 is a poly(ADP-ribose)-directed E3 ligase that regulat... |
ACCEPT |
Summary: protein auto-ADP-ribosylation is a direct TNKS catalytic process.
Reason: TNKS catalyzes protein PARylation and auto-PARylation of itself and binding partners.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme** that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent ubiquitination and turnover.
|
|
GO:0090263
positive regulation of canonical Wnt signaling pathway
|
IMP
PMID:19759537 Tankyrase inhibition stabilizes axin and antagonizes Wnt sig... |
ACCEPT |
Summary: positive regulation of canonical Wnt signaling pathway is a canonical TNKS pathway output through AXIN PARylation.
Reason: TNKS PARylates AXIN1/2 to promote RNF146-dependent AXIN degradation, thereby increasing Wnt/beta-catenin pathway output.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
Multiple retrieved sources state that **tankyrase PARylates AXIN (AXIN1/2)**, which promotes **RNF146-mediated ubiquitination** and **proteasomal degradation** of AXIN. Loss of AXIN destabilizes the destruction complex, thereby **stabilizing β-catenin** and increasing pathway output. Conversely, **tankyrase inhibition stabilizes AXIN** and reduces cytosolic β-catenin and β-catenin–dependent transcription.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary pathway role:** TNKS1/2 control **Wnt/β-catenin signaling** by PARylating **AXIN1/2** to promote RNF146-dependent degradation; inhibition stabilizes AXIN and suppresses β-catenin output.
file:human/TNKS/TNKS-deep-research-falcon.md
The canonical E3 ligase is **RNF146**, described as a **PAR-directed E3** that binds PARylated substrates (via a PAR-binding WWE domain recognizing iso-ADP-ribose) and installs **K48-linked polyubiquitin chains**, driving proteasomal degradation. This underlies a major mechanism by which TNKS controls the abundance of multiple signaling proteins.
|
|
GO:0070198
protein localization to chromosome, telomeric region
|
IMP
PMID:18221737 Telomere elongation by a mutant tankyrase 1 without TRF1 pol... |
ACCEPT |
Summary: protein localization to chromosome, telomeric region is supported as a TNKS telomere-associated role.
Reason: TNKS is recruited to telomeres through TRF1 and regulates telomere-associated protein localization and telomere maintenance/capping outputs.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
**Telomeres**: recruitment via the telomeric factor **TRF1** (consistent with roles in telomere biology).
|
|
GO:0000242
pericentriolar material
|
TAS
PMID:11454873 TANK2, a new TRF1-associated poly(ADP-ribose) polymerase, ca... |
ACCEPT |
Summary: pericentriolar material localization is supported by TNKS spindle/centrosome-associated functions.
Reason: TNKS is recruited to spindle poles via NuMA and is required for NuMA PARylation and spindle organization.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
TNKS also targets proteins involved in mitosis. A structural/functional analysis in the retrieved corpus reports that **TNKS PARylates NuMA**, and further states that **TNKS1 (but not TNKS2)** is specifically required for NuMA PARylation and correct mitotic spindle organization.
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
|
|
GO:0000781
chromosome, telomeric region
|
IDA
PMID:11739745 Role for the related poly(ADP-Ribose) polymerases tankyrase ... |
ACCEPT |
Summary: Chromosome telomeric region localization is supported by TNKS recruitment through TRF1.
Reason: Telomere recruitment is one of the hallmark TNKS localization contexts.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
**Telomeres**: recruitment via the telomeric factor **TRF1** (consistent with roles in telomere biology).
|
|
GO:0005643
nuclear pore
|
TAS
PMID:11454873 TANK2, a new TRF1-associated poly(ADP-ribose) polymerase, ca... |
KEEP AS NON CORE |
Summary: nuclear pore is a plausible reported localization but not the dominant site of TNKS core activity.
Reason: TNKS has multi-compartment partner-mediated localization; the best-supported core locations are cytosol/cytoplasm, nucleus/telomeres, and spindle-associated sites.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The retrieved evidence supports a “multi-compartment” view of TNKS localization via partner-mediated recruitment:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
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|
GO:0007052
mitotic spindle organization
|
TAS
PMID:17026964 Mitotic phosphorylation of tankyrase, a PARP that promotes s... |
KEEP AS NON CORE |
Summary: mitotic spindle organization is supported as a mitotic or telomere-cohesion output of TNKS activity.
Reason: These cell-cycle phenotypes are downstream of TNKS PARylation of substrates such as NuMA or telomere-associated factors, but the core activity is ADP-ribosyltransferase activity.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
TNKS also targets proteins involved in mitosis. A structural/functional analysis in the retrieved corpus reports that **TNKS PARylates NuMA**, and further states that **TNKS1 (but not TNKS2)** is specifically required for NuMA PARylation and correct mitotic spindle organization.
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
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|
GO:0008270
zinc ion binding
|
IDA
PMID:18436240 Zinc binding catalytic domain of human tankyrase 1. |
KEEP AS NON CORE |
Summary: zinc ion binding is plausible as a structural/catalytic-site feature but is not the main function.
Reason: Recent structural synthesis supports a zinc-binding motif in the catalytic acceptor-site architecture, but the core molecular function is ADP-ribosyltransferase activity.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
|
|
GO:0031965
nuclear membrane
|
TAS
PMID:11454873 TANK2, a new TRF1-associated poly(ADP-ribose) polymerase, ca... |
KEEP AS NON CORE |
Summary: nuclear membrane is a plausible reported localization but not the dominant site of TNKS core activity.
Reason: TNKS has multi-compartment partner-mediated localization; the best-supported core locations are cytosol/cytoplasm, nucleus/telomeres, and spindle-associated sites.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The retrieved evidence supports a “multi-compartment” view of TNKS localization via partner-mediated recruitment:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
|
|
GO:0032212
positive regulation of telomere maintenance via telomerase
|
IMP
PMID:11739745 Role for the related poly(ADP-Ribose) polymerases tankyrase ... |
ACCEPT |
Summary: positive regulation of telomere maintenance via telomerase is supported as a TNKS telomere-associated role.
Reason: TNKS is recruited to telomeres through TRF1 and regulates telomere-associated protein localization and telomere maintenance/capping outputs.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
**Telomeres**: recruitment via the telomeric factor **TRF1** (consistent with roles in telomere biology).
|
|
GO:0032212
positive regulation of telomere maintenance via telomerase
|
IDA
PMID:18221737 Telomere elongation by a mutant tankyrase 1 without TRF1 pol... |
ACCEPT |
Summary: positive regulation of telomere maintenance via telomerase is supported as a TNKS telomere-associated role.
Reason: TNKS is recruited to telomeres through TRF1 and regulates telomere-associated protein localization and telomere maintenance/capping outputs.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
**Telomeres**: recruitment via the telomeric factor **TRF1** (consistent with roles in telomere biology).
|
|
GO:0051225
spindle assembly
|
TAS
PMID:17026964 Mitotic phosphorylation of tankyrase, a PARP that promotes s... |
KEEP AS NON CORE |
Summary: spindle assembly is supported as a mitotic or telomere-cohesion output of TNKS activity.
Reason: These cell-cycle phenotypes are downstream of TNKS PARylation of substrates such as NuMA or telomere-associated factors, but the core activity is ADP-ribosyltransferase activity.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
TNKS also targets proteins involved in mitosis. A structural/functional analysis in the retrieved corpus reports that **TNKS PARylates NuMA**, and further states that **TNKS1 (but not TNKS2)** is specifically required for NuMA PARylation and correct mitotic spindle organization.
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
|
|
GO:0018105
peptidyl-serine phosphorylation
|
IDA
PMID:17026964 Mitotic phosphorylation of tankyrase, a PARP that promotes s... |
REMOVE |
Summary: peptidyl-serine phosphorylation is not supported as a TNKS catalytic activity.
Reason: TNKS is an ADP-ribosyltransferase, not a protein kinase catalyzing serine or threonine phosphorylation.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme** that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent ubiquitination and turnover.
|
|
GO:0018107
peptidyl-threonine phosphorylation
|
IDA
PMID:17026964 Mitotic phosphorylation of tankyrase, a PARP that promotes s... |
REMOVE |
Summary: peptidyl-threonine phosphorylation is not supported as a TNKS catalytic activity.
Reason: TNKS is an ADP-ribosyltransferase, not a protein kinase catalyzing serine or threonine phosphorylation.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme** that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent ubiquitination and turnover.
|
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GO:0005515
protein binding
|
IPI
PMID:12768206 POT1 as a terminal transducer of TRF1 telomere length contro... |
MARK AS OVER ANNOTATED |
Summary: Protein binding is supported but too generic for TNKS substrate recognition.
Reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
Tankyrase-1 is a **multidomain “scaffold-enzyme”**:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
|
|
GO:0003950
NAD+ poly-ADP-ribosyltransferase activity
|
IDA
PMID:9822378 Tankyrase, a poly(ADP-ribose) polymerase at human telomeres. |
ACCEPT |
Summary: NAD+ poly-ADP-ribosyltransferase activity is a core TNKS catalytic molecular function.
Reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and protein substrates, with acidic acceptor-residue specificity supported by recent structural synthesis.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
file:human/TNKS/TNKS-deep-research-falcon.md
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes **preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic features including an **HYE catalytic triad** and a catalytic acceptor-site architecture containing a **CHCC-type zinc-binding motif** important for structural integrity of the acceptor site.
file:human/TNKS/TNKS-deep-research-falcon.md
**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme** that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent ubiquitination and turnover.
|
|
GO:0005515
protein binding
|
IPI
PMID:9822378 Tankyrase, a poly(ADP-ribose) polymerase at human telomeres. |
MARK AS OVER ANNOTATED |
Summary: Protein binding is supported but too generic for TNKS substrate recognition.
Reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
Supporting Evidence:
file:human/TNKS/TNKS-deep-research-falcon.md
The UniProt accession **O95271** corresponds to **human tankyrase-1**, encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes **tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
file:human/TNKS/TNKS-deep-research-falcon.md
Tankyrase-1 is a **multidomain “scaffold-enzyme”**:
file:human/TNKS/TNKS-deep-research-falcon.md
**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).
|
The research report should be a detailed narrative explaining the function, biological processes, and localization of the gene product. Citations should be given for all claims.
You should prioritize authoritative reviews and primary scientific literature when conducting research. You can supplement
this with annotations you find in gene/protein databases, but these can be outdated or inaccurate.
We are specifically interested in the primary function of the gene - for enzymes, what reaction is catalyzed, and what is the substrate specificity? For transporters, what is the substrate? For structural proteins or adapters, what is the broader structural role? For signaling molecules, what is the role in the pathway.
We are interested in where in or outside the cell the gene product carries out its function.
We are also interested in the signaling or biochemical pathways in which the gene functions. We are less interested in broad pleiotropic effects, except where these elucidate the precise role.
Include evidence where possible. We are interested in both experimental evidence as well as inference from structure, evolution, or bioinformatic analysis. Precise studies should be prioritized over high-throughput, where available.
The UniProt accession O95271 corresponds to human tankyrase-1, encoded by TNKS (synonyms PARP5A, ARTD5). Recent literature explicitly distinguishes tankyrase-1 (TNKS1/PARP5A/ARTD5) from tankyrase-2 (TNKS2/PARP5B/ARTD6) and describes the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain) and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context. (perrard2023multiplee3ligases pages 1-2, ma2024investigationonendothelial pages 19-23)
Tankyrase-1 (TNKS1) is an ADP-ribosyltransferase of the PARP/ARTD family that uses NAD+ as the substrate to catalyze covalent transfer of ADP-ribose onto itself and protein binding partners, generating poly(ADP-ribose) (PAR) chains (i.e., PARylation). (perrard2023multiplee3ligases pages 1-2, defo2024astructuraland pages 19-22, defo2024astructuraland pages 29-34)
Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate acceptor sites; a structural/functional synthesis in the retrieved literature notes preference for acidic acceptor residues (Glu/Asp) and describes canonical catalytic features including an HYE catalytic triad and a catalytic acceptor-site architecture containing a CHCC-type zinc-binding motif important for structural integrity of the acceptor site. (defo2024astructuraland pages 29-34)
Tankyrase-1 is a multidomain “scaffold-enzyme”:
- N-terminal HPS region (function less defined in the retrieved evidence). (perrard2023multiplee3ligases pages 1-2)
- Ankyrin repeat domain organized into five ankyrin-repeat clusters (ARCs) that mediate substrate recognition by binding short tankyrase-binding motifs (TBMs) in partner proteins. (perrard2023multiplee3ligases pages 1-2, defo2024astructuraland pages 29-34)
- A SAM (sterile alpha motif) domain that promotes oligomerization/polymerization, which is important for physiological substrate modification and pathway outputs (notably Wnt signaling contexts). (defo2024astructuraland pages 19-22, defo2024astructuraland pages 29-34)
- A C-terminal PARP catalytic domain that performs NAD+-dependent PARylation. (perrard2023multiplee3ligases pages 1-2, defo2024astructuraland pages 29-34)
A schematic TNKS1 domain map (HPS–Ankyrin vs SAM–PARP catalytic region) was extracted from Perrard & Smith (Nature Communications, 2023), supporting this domain organization visually. (perrard2023multiplee3ligases media 2e6d286a)
A central organizing principle for TNKS biology is that TNKS-mediated PARylation can mark proteins for ubiquitin-dependent proteasomal degradation through PAR-binding E3 ligases.
The canonical E3 ligase is RNF146, described as a PAR-directed E3 that binds PARylated substrates (via a PAR-binding WWE domain recognizing iso-ADP-ribose) and installs K48-linked polyubiquitin chains, driving proteasomal degradation. This underlies a major mechanism by which TNKS controls the abundance of multiple signaling proteins. (perrard2023multiplee3ligases pages 1-2, perrard2023multiplee3ligases pages 2-4)
A model figure depicting PAR-dependent RNF146-mediated ubiquitination/degradation in the TNKS system was also extracted as an image. (perrard2023multiplee3ligases media 9dbede60)
A best-supported, canonical TNKS function is regulation of canonical Wnt/β-catenin signaling by controlling the stability of the β-catenin destruction complex component AXIN.
Multiple retrieved sources state that tankyrase PARylates AXIN (AXIN1/2), which promotes RNF146-mediated ubiquitination and proteasomal degradation of AXIN. Loss of AXIN destabilizes the destruction complex, thereby stabilizing β-catenin and increasing pathway output. Conversely, tankyrase inhibition stabilizes AXIN and reduces cytosolic β-catenin and β-catenin–dependent transcription. (ma2024investigationonendothelial pages 19-23, perrard2023multiplee3ligases pages 1-2, defo2024astructuraland pages 19-22)
The Hippo pathway adaptor angiomotin/angiomotin-like proteins (AMOT family) are among the TNKS-regulated proteins described in the retrieved evidence.
Perrard & Smith (2023) describes AMOT among TNKS binding partners/targets whose levels can be influenced by the balance of PAR-dependent ubiquitination pathways, and identifies additional PAR-binding E3 ligases that stabilize TNKS and a subset of partners including AMOT. (perrard2023multiplee3ligases pages 1-2, perrard2023multiplee3ligases pages 2-4)
A 2024 colorectal cancer study reports that an E3 ligase (RNF166) recognizes PARsylated angiomotin, with specific residues listed as D506, E513, E516, E528, and that the TNKS inhibitor XAV939 prevents RNF166-dependent destabilization of angiomotins and downstream YAP activation in that model. (zimmerlin2025proteogenomicreprogrammingto pages 35-36)
TNKS also targets proteins involved in mitosis. A structural/functional analysis in the retrieved corpus reports that TNKS PARylates NuMA, and further states that TNKS1 (but not TNKS2) is specifically required for NuMA PARylation and correct mitotic spindle organization. (defo2024astructuraland pages 19-22)
The retrieved evidence supports a “multi-compartment” view of TNKS localization via partner-mediated recruitment:
- Telomeres: recruitment via the telomeric factor TRF1 (consistent with roles in telomere biology). (perrard2023multiplee3ligases pages 1-2)
- Spindle poles: recruitment via NuMA. (perrard2023multiplee3ligases pages 1-2, defo2024astructuraland pages 19-22)
- GLUT4 vesicles: recruitment via IRAP (insulin-responsive aminopeptidase), linking TNKS to glucose homeostasis/vesicle trafficking. (perrard2023multiplee3ligases pages 1-2)
Perrard & Smith (Nature Communications; published Nov 2023) provides detailed mechanistic evidence that TNKS is regulated by multiple PAR-binding E3 ligases, not only RNF146. (perrard2023multiplee3ligases pages 1-2, perrard2023multiplee3ligases pages 2-4)
Key regulatory logic:
- RNF146 drives K48-linked polyubiquitination and degradation of auto-PARylated TNKS and PARylated partners (a negative-feedback loop). (perrard2023multiplee3ligases pages 1-2)
- RING-UIM E3 ligases (notably RNF114 and RNF166) can instead bind and stabilize mono-ubiquitylated TNKS and promote K11-linked diubiquitylation that antagonizes RNF146-mediated degradation, thereby stabilizing TNKS and a subset of partners (including AMOT). (perrard2023multiplee3ligases pages 1-2)
Quantitatively, RNF114/166 overexpression caused about a two- to three-fold increase in TNKS protein and about a two-fold increase in PAR-TNKS in the summarized excerpt, and these effects depended on catalytically active TNKS1 and were abrogated by tankyrase inhibitors. (perrard2023multiplee3ligases pages 2-4)
A 2024 review emphasizes that, compared with PARP1/2, the molecular consequences of tankyrase inhibition and pathway impacts are less completely understood, contributing to challenges in translating tankyrase inhibitors clinically; it also points to shared regulatory principles (low basal activity, assembly-driven activation, negative feedback via auto-PARylation, allosteric communication) as an emerging framework to guide future drug development. (yang2026antitumoractivityand pages 62-63)
A 2024 Journal of Cell Biology paper links RNF146 and TNKS/TNKS2 to peroxisomal protein import, reporting that RNF146 regulates peroxisome import by preventing PARsylation of peroxisomal proteins by TNKS/2 and that peroxisomal recruitment can reorient TNKS/2 activity away from canonical Wnt substrates, indicating organelle-localized specialization of TNKS regulatory logic. (zimmerlin2025proteogenomicreprogrammingto pages 35-36)
A 2024 NPJ Precision Oncology study screened 3,114 compounds and identified tankyrase1/2 inhibitors (Wnt/β-catenin pathway) among top candidates to suppress alectinib-induced drug tolerant persister (DTP) growth. It reports that knockdown of TNKS1/2 increased Axin1/2 stability, promoting β-catenin degradation and reducing nuclear β-catenin, and that combining ALK-TKI + pan-HER inhibitor + TNKS1/2 inhibitor almost completely prevented DTP appearance in their model. (yang2026antitumoractivityand pages 62-63)
A 2024 British Journal of Cancer paper reports a study using 47 colorectal cancer patient-derived cells to examine correlations between sensitivity to tankyrase inhibitors (G007-LK and RK-582) and genomic/β-catenin features, supporting ongoing efforts to stratify Wnt-pathway-driven contexts for tankyrase-targeted approaches. (yang2026antitumoractivityand pages 62-63)
A 2024 Nature Communications study reports that selective tankyrase inhibitors (e.g., WIKI4) enhance pancreatic differentiation from hPSCs. The excerpted snippet provides group sizes at stage 6 such as n=5 (DMSO), n=3 (XAV939/JW74), n=6 (WIKI4/JW55), n=7 (G007-LK), n=8 (NA) for some analyses, supporting rigor in the differentiation experiments. (yang2026antitumoractivityand pages 62-63)
A 2024 pharmacology study reports that XAV939 alters endothelial junctional dynamics, permeability, and migration, and mechanistically increases stability of angiomotin-like proteins and perturbs YAP1/TAZ-TEAD transcriptional output, implying that systemic tankyrase inhibition could have endothelial side effects relevant to translational development. (OpenTargets Search: -TNKS)
A 2024 preprint describing use of XAV939 in a stem-cell reprogramming context highlights selectivity limitations: XAV939 is reported to inhibit TNKS with IC50 ~5.2–94.6 nM, but also inhibits PARP1/2 with IC50 ~26.9–169 nM, and in that system globally inhibited TNKS- and PARP1-mediated PARylation. (zimmerlin2024proteogenomicreprogrammingto pages 3-5)
A medicinal-chemistry review (2026; included here for quantitative drug data not otherwise present in 2023–2024 excerpts) reports:
- Talazoparib binding to TNKS1 with Kd = 14 nM (SPR), supporting the concept that some clinical PARP inhibitors may engage tankyrase at relevant exposures. (yang2026antitumoractivityand pages 47-49)
- Stenoparib as a dual inhibitor with PARP1/2 IC50 = 1.0–1.2 nM and TNKS1/2 IC50 = 50–120 nM. (yang2026antitumoractivityand pages 44-47)
These data are useful for interpreting on-/off-target effects when PARP inhibitors are used in contexts where tankyrase biology matters (e.g., Wnt output). (yang2026antitumoractivityand pages 44-47)
ClinicalTrials.gov metadata retrieved here indicate that clinical translation of tankyrase inhibition is emerging but still relatively early:
- RK-582: a dedicated tankyrase inhibitor trial in unresectable metastatic colorectal cancer (Phase 1, recruiting; planned enrollment 48; NCT06853496; URL: https://clinicaltrials.gov/study/NCT06853496). (trial metadata in tool output)
- Dual PARP/tankyrase programs exist (e.g., E7449; JPI-547) but are not selective TNKS1 interventions. (yang2026antitumoractivityand pages 47-49)
OpenTargets associates TNKS with broad disease categories including cancer, with supporting literature links, though this evidence is aggregated and not a mechanistic substitute for primary studies. (OpenTargets Search: -TNKS)
The table below consolidates the most relevant mechanistic and translational evidence extracted from the retrieved sources.
| Topic | Key findings (1-2 sentences) | Quantitative data (IC50/Kd, fold-changes, n, etc.) | Source (first author, journal, publication date) | URL |
|---|---|---|---|---|
| Identity/domains | Human TNKS corresponds to tankyrase-1/PARP5A/ARTD5, a PARP-family ADP-ribosyltransferase. Domain architecture includes an N-terminal HPS region, ankyrin repeat domain organized into five ARCs for TBM-dependent substrate recognition, a SAM oligomerization domain, and a C-terminal PARP catalytic domain; TNKS1 localizes with telomeres (TRF1), spindle poles (NuMA), and GLUT4 vesicles (IRAP) (perrard2023multiplee3ligases pages 1-2, defo2024astructuraland pages 29-34, perrard2023multiplee3ligases media 2e6d286a). | TNKS1 schematic spans residues 1–999 (HPS-Ankyrin) and 1000–1327 (SAM-PARP catalytic region); ARC3 lacks a TBM-binding pocket; TNKS PAR chains average ~20 ADP-ribose units (defo2024astructuraland pages 29-34, perrard2023multiplee3ligases media 2e6d286a). | Perrard, Nature Communications, 2023-11; Defo, unknown journal, 2024 | https://doi.org/10.1038/s41467-023-42939-3 |
| Enzymatic reaction | TNKS1 uses NAD+ as substrate/cofactor to transfer ADP-ribose onto itself and binding partners, producing MAR/PAR and functioning as a poly(ADP-ribose) polymerase. It preferentially modifies acidic residues (Glu/Asp), contains an HYE catalytic triad, and the zinc-binding motif supports structural integrity of the catalytic acceptor site (perrard2023multiplee3ligases pages 1-2, defo2024astructuraland pages 19-22, defo2024astructuraland pages 29-34). | NAD+ donor usage explicitly stated; preferred acceptors are glutamate/aspartate; zinc-motif mutation rendered TNKS1 inactive in one structural/biochemical study (defo2024astructuraland pages 19-22, defo2024astructuraland pages 29-34). | Perrard, Nature Communications, 2023-11; Defo, unknown journal, 2024; Sowa, Open Biology, 2022-03 | https://doi.org/10.1038/s41467-023-42939-3 |
| Key substrates & pathways | Major substrates/pathways include AXIN1/2 in Wnt/β-catenin signaling, where TNKS PARylation promotes AXIN degradation and β-catenin stabilization; AMOT family proteins in Hippo/YAP signaling; NuMA in mitotic spindle organization; and telomere-associated factors such as TRF1 in telomere biology (perrard2023multiplee3ligases pages 1-2, defo2024astructuraland pages 19-22, ma2024investigationonendothelial pages 19-23). Recent work also links TNKS to peroxisome homeostasis through PEX14-associated signaling that intersects with Wnt output (zimmerlin2025proteogenomicreprogrammingto pages 35-36). | TNKS1 is specifically required for NuMA PARylation in one cited structural study; AMOT PARylation sites reported as D506, E513, E516, and E528 in CRC-related work (defo2024astructuraland pages 19-22, ma2024investigationonendothelial pages 19-23). | Perrard, Nature Communications, 2023-11; Li, Cell Death & Disease, 2024-03; Vu, Journal of Cell Biology, 2024-07 | https://doi.org/10.1038/s41467-023-42939-3 |
| Regulation via ubiquitin E3 ligases | RNF146 is a PAR-directed E3 ligase that binds PARylated TNKS and substrates via a WWE domain and promotes K48-linked polyubiquitylation/proteasomal degradation, central to PAR-dependent ubiquitylation (PARdU). RING-UIM ligases RNF114 and RNF166 instead stabilize mono-ubiquitylated TNKS and promote K11-linked diubiquitylation that opposes RNF146-mediated degradation (perrard2023multiplee3ligases pages 1-2, perrard2023multiplee3ligases pages 2-4, perrard2023multiplee3ligases media 2e6d286a). | RNF114/166 increased TNKS protein ~2–3-fold and PAR-TNKS ~2-fold; effects required catalytically active TNKS1 and were measured with at least 3 independent replicates in the study summary (perrard2023multiplee3ligases pages 2-4). | Perrard, Nature Communications, 2023-11; Jessop, Biochemical Journal, 2024-08 | https://doi.org/10.1038/s41467-023-42939-3 |
| Inhibitors & potency | XAV939 is a widely used catalytic-site TNKS inhibitor that stabilizes AXIN and suppresses Wnt signaling but is not fully selective, also inhibiting PARP1/2. Other translationally relevant TNKS inhibitors include G007-LK, RK-582, WIKI4, and dual PARP/TNKS compounds such as stenoparib and JPI-547; talazoparib also shows measurable TNKS1 binding in SPR (zimmerlin2024proteogenomicreprogrammingto pages 3-5, yang2026antitumoractivityand pages 47-49, yang2026antitumoractivityand pages 44-47). | XAV939 reported IC50 range ~5.2–94.6 nM for TNKS and ~26.9–169 nM for PARP1/2; talazoparib TNKS1 Kd = 14 nM; stenoparib PARP1/2 IC50 = 1.0–1.2 nM and TNKS1/2 IC50 = 50–120 nM; dual inhibitor examples: compound 169 TNKS1/2 IC50 39.0/14.0 nM and compound 172 TNKS1/2 IC50 13.5/4.15 nM (zimmerlin2024proteogenomicreprogrammingto pages 3-5, yang2026antitumoractivityand pages 47-49, yang2026antitumoractivityand pages 44-47). | Zimmerlin, bioRxiv, 2024-06; Yang, J Enzyme Inhib Med Chem, 2026-12 | https://doi.org/10.1101/2024.06.14.598510 |
| Translational/real-world applications | TNKS inhibition is being explored in cancer, endothelial biology, osteoarthritis-related chondrocyte responses, stem-cell differentiation, and drug-resistance prevention. Recent 2024 studies showed TNKS1/2 inhibition suppresses ALK inhibitor-tolerant persister cells in NSCLC, helps define sensitive colorectal cancer patient-derived cells, and improves endocrine commitment of hPSC-derived pancreatic progenitors (ma2024investigationonendothelial pages 84-86, zimmerlin2025proteogenomicreprogrammingto pages 35-36, yang2026antitumoractivityand pages 62-63). | ALK+ NSCLC study screened 3,114 compounds and found TNKS1/2 inhibitors among top classes; CRC biomarker study used 47 patient-derived cells; pancreatic differentiation study reported group sizes such as n=5 (DMSO), n=3 (XAV939/JW74), n=6 (WIKI4/JW55), n=7 (G007-LK), n=8 (NA) in cited snippet (yang2026antitumoractivityand pages 62-63). | Fujimura, NPJ Precision Oncology, 2024-11; Chen, British Journal of Cancer, 2024-11; Poon, Nature Communications, 2024-10; Ma, Naunyn-Schmiedeberg's Arch Pharmacol, 2024-09 | https://doi.org/10.1038/s41698-024-00757-w |
| Clinical trials | Tankyrase-directed clinical translation remains early, but a dedicated TNKS inhibitor trial is underway with RK-582 in unresectable metastatic colorectal cancer. Broader dual PARP/TNKS clinical activity is also represented by agents such as E7449 and JPI-547, though these are not selective TNKS1-only interventions (yang2026antitumoractivityand pages 47-49, yang2026antitumoractivityand pages 44-47). | RK-582 phase I trial NCT06853496 is recruiting with planned enrollment 48; JPI-547 phase II ovarian study enrollment 58; E7449 phase I/II completed with enrollment 41 (yang2026antitumoractivityand pages 47-49, yang2026antitumoractivityand pages 44-47). | ClinicalTrials.gov entries summarized in tool output; Yang, J Enzyme Inhib Med Chem, 2026-12 | https://clinicaltrials.gov/study/NCT06853496 |
Table: This table summarizes key evidence for human TNKS/tankyrase-1, including identity, catalytic function, pathways, regulatory ligases, inhibitor data, and translational progress. It is useful as a compact evidence map anchored to the retrieved context and recent literature.
References
(perrard2023multiplee3ligases pages 1-2): Jerome Perrard and Susan Smith. Multiple e3 ligases control tankyrase stability and function. Nature Communications, Nov 2023. URL: https://doi.org/10.1038/s41467-023-42939-3, doi:10.1038/s41467-023-42939-3. This article has 24 citations and is from a highest quality peer-reviewed journal.
(ma2024investigationonendothelial pages 19-23): N Ma. Investigation on endothelial junctional remodeling by the tankyrase inhibitor xav939. Unknown journal, 2024.
(defo2024astructuraland pages 19-22): A Kuate Defo. A structural and functional analysis of the human tankyrase enzyme. Unknown journal, 2024.
(defo2024astructuraland pages 29-34): A Kuate Defo. A structural and functional analysis of the human tankyrase enzyme. Unknown journal, 2024.
(perrard2023multiplee3ligases media 2e6d286a): Jerome Perrard and Susan Smith. Multiple e3 ligases control tankyrase stability and function. Nature Communications, Nov 2023. URL: https://doi.org/10.1038/s41467-023-42939-3, doi:10.1038/s41467-023-42939-3. This article has 24 citations and is from a highest quality peer-reviewed journal.
(perrard2023multiplee3ligases pages 2-4): Jerome Perrard and Susan Smith. Multiple e3 ligases control tankyrase stability and function. Nature Communications, Nov 2023. URL: https://doi.org/10.1038/s41467-023-42939-3, doi:10.1038/s41467-023-42939-3. This article has 24 citations and is from a highest quality peer-reviewed journal.
(perrard2023multiplee3ligases media 9dbede60): Jerome Perrard and Susan Smith. Multiple e3 ligases control tankyrase stability and function. Nature Communications, Nov 2023. URL: https://doi.org/10.1038/s41467-023-42939-3, doi:10.1038/s41467-023-42939-3. This article has 24 citations and is from a highest quality peer-reviewed journal.
(zimmerlin2025proteogenomicreprogrammingto pages 35-36): Ludovic Zimmerlin, Ariana Angarita, Tea Soon Park, Rebecca Evans-Moses, Justin Thomas, Sirui Yan, Isabel Uribe, Isabella Vegas, Clara Kochendoerfer, Willem Buys, Anthony K.L. Leung, and Elias T. Zambidis. Proteogenomic reprogramming to a functional human blastomere-like stem cell state via a parp-dux4 regulatory axis. Cell reports, 44 5:115671, May 2025. URL: https://doi.org/10.1016/j.celrep.2025.115671, doi:10.1016/j.celrep.2025.115671. This article has 2 citations and is from a highest quality peer-reviewed journal.
(yang2026antitumoractivityand pages 62-63): Chunhui Yang, Yunpeng Shang, Xin Li, Jingjing Li, Hai Li, and Jicheng Han. Antitumor activity and structure–activity relationship of poly (adp-ribose) polymerase (parp)-based dual inhibitors. Journal of Enzyme Inhibition and Medicinal Chemistry, Dec 2026. URL: https://doi.org/10.1080/14756366.2025.2598478, doi:10.1080/14756366.2025.2598478. This article has 0 citations and is from a peer-reviewed journal.
(OpenTargets Search: -TNKS): Open Targets Query (-TNKS, 7 results). Buniello, A. et al. (2025). Open Targets Platform: facilitating therapeutic hypotheses building in drug discovery. Nucleic Acids Research.
(zimmerlin2024proteogenomicreprogrammingto pages 3-5): Ludovic Zimmerlin, Ariana Angarita, T. Park, Rebecca Evans-Moses, Justin Thomas, Sirui Yan, Isabel Uribe, Isabella Vegas, Clara Kochendoerfer, Willem Buys, Anthony K. L. Leung, and Elias T. Zambidis. Proteogenomic reprogramming to a functional human totipotent stem cell state via a parp-dux4 regulatory axis. bioRxiv, Jun 2024. URL: https://doi.org/10.1101/2024.06.14.598510, doi:10.1101/2024.06.14.598510. This article has 0 citations.
(yang2026antitumoractivityand pages 47-49): Chunhui Yang, Yunpeng Shang, Xin Li, Jingjing Li, Hai Li, and Jicheng Han. Antitumor activity and structure–activity relationship of poly (adp-ribose) polymerase (parp)-based dual inhibitors. Journal of Enzyme Inhibition and Medicinal Chemistry, Dec 2026. URL: https://doi.org/10.1080/14756366.2025.2598478, doi:10.1080/14756366.2025.2598478. This article has 0 citations and is from a peer-reviewed journal.
(yang2026antitumoractivityand pages 44-47): Chunhui Yang, Yunpeng Shang, Xin Li, Jingjing Li, Hai Li, and Jicheng Han. Antitumor activity and structure–activity relationship of poly (adp-ribose) polymerase (parp)-based dual inhibitors. Journal of Enzyme Inhibition and Medicinal Chemistry, Dec 2026. URL: https://doi.org/10.1080/14756366.2025.2598478, doi:10.1080/14756366.2025.2598478. This article has 0 citations and is from a peer-reviewed journal.
(ma2024investigationonendothelial pages 84-86): N Ma. Investigation on endothelial junctional remodeling by the tankyrase inhibitor xav939. Unknown journal, 2024.
id: O95271
gene_symbol: TNKS
product_type: PROTEIN
status: COMPLETE
taxon:
id: NCBITaxon:9606
label: Homo sapiens
description: 'TNKS encodes tankyrase-1/PARP5A, a multidomain NAD+-dependent ADP-ribosyltransferase that
recognizes substrate proteins through ankyrin-repeat clusters and catalyzes protein poly- and auto-ADP-ribosylation.
Its core functions include PARylation-dependent control of AXIN turnover and Wnt/beta-catenin signaling,
telomere-associated TRF1 biology, and NuMA-dependent spindle organization, with activity distributed
across cytoplasmic, nuclear/telomeric, and spindle-associated compartments.'
existing_annotations:
- term:
id: GO:0003950
label: NAD+ poly-ADP-ribosyltransferase activity
evidence_type: IBA
original_reference_id: GO_REF:0000033
review:
summary: NAD+ poly-ADP-ribosyltransferase activity is a core TNKS catalytic molecular function.
action: ACCEPT
reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and
protein substrates, with acidic acceptor-residue specificity supported by recent structural
synthesis.
supported_by: &id004
- &id012
reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family
that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and
protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).'
- &id013
reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate
acceptor sites; a structural/functional synthesis in the retrieved literature notes
**preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic
features including an **HYE catalytic triad** and a catalytic acceptor-site architecture
containing a **CHCC-type zinc-binding motif** important for structural integrity of the
acceptor site.
- &id014
reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Primary molecular function:** TNKS1 is an **NAD+-dependent PARP-family enzyme**
that PARylates itself and protein partners, frequently acting as a switch to trigger PAR-dependent
ubiquitination and turnover.'
- term:
id: GO:0005634
label: nucleus
evidence_type: IBA
original_reference_id: GO_REF:0000033
review:
summary: nucleus localization is consistent with TNKS multi-compartment activity.
action: ACCEPT
reason: TNKS acts in nuclear/telomeric and cytoplasmic signaling contexts, including Wnt pathway
regulation.
supported_by: &id001
- &id005
reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: 'The retrieved evidence supports a “multi-compartment” view of TNKS localization
via partner-mediated recruitment:'
- &id006
reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The UniProt accession **O95271** corresponds to **human tankyrase-1**,
encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes
**tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes
the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain)
and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via
NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
- term:
id: GO:0005737
label: cytoplasm
evidence_type: IBA
original_reference_id: GO_REF:0000033
review:
summary: cytoplasm localization is consistent with TNKS multi-compartment activity.
action: ACCEPT
reason: TNKS acts in nuclear/telomeric and cytoplasmic signaling contexts, including Wnt pathway
regulation.
supported_by: *id001
- term:
id: GO:0070198
label: protein localization to chromosome, telomeric region
evidence_type: IBA
original_reference_id: GO_REF:0000033
review:
summary: protein localization to chromosome, telomeric region is supported as a TNKS
telomere-associated role.
action: ACCEPT
reason: TNKS is recruited to telomeres through TRF1 and regulates telomere-associated protein
localization and telomere maintenance/capping outputs.
supported_by: &id002
- &id011
reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The UniProt accession **O95271** corresponds to **human tankyrase-1**,
encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes
**tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes
the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain)
and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via
NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
- &id015
reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Telomeres**: recruitment via the telomeric factor **TRF1** (consistent with
roles in telomere biology).'
- term:
id: GO:0090263
label: positive regulation of canonical Wnt signaling pathway
evidence_type: IBA
original_reference_id: GO_REF:0000033
review:
summary: positive regulation of canonical Wnt signaling pathway is a canonical TNKS pathway
output through AXIN PARylation.
action: ACCEPT
reason: TNKS PARylates AXIN1/2 to promote RNF146-dependent AXIN degradation, thereby increasing
Wnt/beta-catenin pathway output.
supported_by: &id007
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: Multiple retrieved sources state that **tankyrase PARylates AXIN (AXIN1/2)**,
which promotes **RNF146-mediated ubiquitination** and **proteasomal degradation** of AXIN.
Loss of AXIN destabilizes the destruction complex, thereby **stabilizing β-catenin** and
increasing pathway output. Conversely, **tankyrase inhibition stabilizes AXIN** and reduces
cytosolic β-catenin and β-catenin–dependent transcription.
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Primary pathway role:** TNKS1/2 control **Wnt/β-catenin signaling** by PARylating
**AXIN1/2** to promote RNF146-dependent degradation; inhibition stabilizes AXIN and suppresses
β-catenin output.'
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The canonical E3 ligase is **RNF146**, described as a **PAR-directed E3**
that binds PARylated substrates (via a PAR-binding WWE domain recognizing iso-ADP-ribose)
and installs **K48-linked polyubiquitin chains**, driving proteasomal degradation. This
underlies a major mechanism by which TNKS controls the abundance of multiple signaling
proteins.
- term:
id: GO:1904355
label: positive regulation of telomere capping
evidence_type: IBA
original_reference_id: GO_REF:0000033
review:
summary: positive regulation of telomere capping is supported as a TNKS telomere-associated
role.
action: ACCEPT
reason: TNKS is recruited to telomeres through TRF1 and regulates telomere-associated protein
localization and telomere maintenance/capping outputs.
supported_by: *id002
- term:
id: GO:0000139
label: Golgi membrane
evidence_type: IEA
original_reference_id: GO_REF:0000044
review:
summary: Golgi membrane is a plausible reported localization but not the dominant site of TNKS
core activity.
action: KEEP_AS_NON_CORE
reason: TNKS has multi-compartment partner-mediated localization; the best-supported core
locations are cytosol/cytoplasm, nucleus/telomeres, and spindle-associated sites.
supported_by: *id001
- term:
id: GO:0000209
label: protein polyubiquitination
evidence_type: IEA
original_reference_id: GO_REF:0000117
review:
summary: Protein polyubiquitination captures a downstream consequence of TNKS PARylation but
misstates the direct TNKS activity.
action: MODIFY
reason: TNKS does not function as the E3 ubiquitin ligase; it PARylates substrates that are then
recognized by PAR-binding ubiquitin ligases such as RNF146.
proposed_replacement_terms: &id018
- id: GO:0070212
label: protein poly-ADP-ribosylation
- id: GO:0003950
label: NAD+ poly-ADP-ribosyltransferase activity
supported_by:
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The canonical E3 ligase is **RNF146**, described as a **PAR-directed E3**
that binds PARylated substrates (via a PAR-binding WWE domain recognizing iso-ADP-ribose)
and installs **K48-linked polyubiquitin chains**, driving proteasomal degradation. This
underlies a major mechanism by which TNKS controls the abundance of multiple signaling
proteins.
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: Multiple retrieved sources state that **tankyrase PARylates AXIN (AXIN1/2)**,
which promotes **RNF146-mediated ubiquitination** and **proteasomal degradation** of AXIN.
Loss of AXIN destabilizes the destruction complex, thereby **stabilizing β-catenin** and
increasing pathway output. Conversely, **tankyrase inhibition stabilizes AXIN** and reduces
cytosolic β-catenin and β-catenin–dependent transcription.
- term:
id: GO:0000242
label: pericentriolar material
evidence_type: IEA
original_reference_id: GO_REF:0000117
review:
summary: pericentriolar material localization is supported by TNKS spindle/centrosome-associated
functions.
action: ACCEPT
reason: TNKS is recruited to spindle poles via NuMA and is required for NuMA PARylation and
spindle organization.
supported_by: &id003
- &id009
reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: TNKS also targets proteins involved in mitosis. A structural/functional
analysis in the retrieved corpus reports that **TNKS PARylates NuMA**, and further states
that **TNKS1 (but not TNKS2)** is specifically required for NuMA PARylation and correct
mitotic spindle organization.
- &id010
reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The UniProt accession **O95271** corresponds to **human tankyrase-1**,
encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes
**tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes
the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain)
and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via
NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
- term:
id: GO:0000781
label: chromosome, telomeric region
evidence_type: IEA
original_reference_id: GO_REF:0000120
review:
summary: Chromosome telomeric region localization is supported by TNKS recruitment through TRF1.
action: ACCEPT
reason: Telomere recruitment is one of the hallmark TNKS localization contexts.
supported_by: *id002
- term:
id: GO:0000922
label: spindle pole
evidence_type: IEA
original_reference_id: GO_REF:0000044
review:
summary: spindle pole localization is supported by TNKS spindle/centrosome-associated functions.
action: ACCEPT
reason: TNKS is recruited to spindle poles via NuMA and is required for NuMA PARylation and
spindle organization.
supported_by: *id003
- term:
id: GO:0003950
label: NAD+ poly-ADP-ribosyltransferase activity
evidence_type: IEA
original_reference_id: GO_REF:0000120
review:
summary: NAD+ poly-ADP-ribosyltransferase activity is a core TNKS catalytic molecular function.
action: ACCEPT
reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and
protein substrates, with acidic acceptor-residue specificity supported by recent structural
synthesis.
supported_by: *id004
- term:
id: GO:0005635
label: nuclear envelope
evidence_type: IEA
original_reference_id: GO_REF:0000117
review:
summary: nuclear envelope is a plausible reported localization but not the dominant site of TNKS
core activity.
action: KEEP_AS_NON_CORE
reason: TNKS has multi-compartment partner-mediated localization; the best-supported core
locations are cytosol/cytoplasm, nucleus/telomeres, and spindle-associated sites.
supported_by: *id001
- term:
id: GO:0005643
label: nuclear pore
evidence_type: IEA
original_reference_id: GO_REF:0000044
review:
summary: nuclear pore is a plausible reported localization but not the dominant site of TNKS
core activity.
action: KEEP_AS_NON_CORE
reason: TNKS has multi-compartment partner-mediated localization; the best-supported core
locations are cytosol/cytoplasm, nucleus/telomeres, and spindle-associated sites.
supported_by: *id001
- term:
id: GO:0005737
label: cytoplasm
evidence_type: IEA
original_reference_id: GO_REF:0000044
review:
summary: cytoplasm localization is consistent with TNKS multi-compartment activity.
action: ACCEPT
reason: TNKS acts in nuclear/telomeric and cytoplasmic signaling contexts, including Wnt pathway
regulation.
supported_by: *id001
- term:
id: GO:0005813
label: centrosome
evidence_type: IEA
original_reference_id: GO_REF:0000044
review:
summary: centrosome localization is supported by TNKS spindle/centrosome-associated functions.
action: ACCEPT
reason: TNKS is recruited to spindle poles via NuMA and is required for NuMA PARylation and
spindle organization.
supported_by: *id003
- term:
id: GO:0015031
label: protein transport
evidence_type: IEA
original_reference_id: GO_REF:0000043
review:
summary: protein transport is a context-specific transport-related role rather than the primary
TNKS function.
action: KEEP_AS_NON_CORE
reason: Transport annotations are secondary to TNKS substrate PARylation and pathway regulation.
supported_by:
- *id005
- *id006
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The UniProt accession **O95271** corresponds to **human tankyrase-1**,
encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes
**tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes
the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain)
and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via
NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
- term:
id: GO:0016055
label: Wnt signaling pathway
evidence_type: IEA
original_reference_id: GO_REF:0000043
review:
summary: Wnt signaling pathway is a canonical TNKS pathway output through AXIN PARylation.
action: ACCEPT
reason: TNKS PARylates AXIN1/2 to promote RNF146-dependent AXIN degradation, thereby increasing
Wnt/beta-catenin pathway output.
supported_by: *id007
- term:
id: GO:0016740
label: transferase activity
evidence_type: IEA
original_reference_id: GO_REF:0000043
review:
summary: transferase activity is too broad for TNKS catalytic activity.
action: MODIFY
reason: The supported activity is NAD+-dependent protein
ADP-ribosyltransferase/poly-ADP-ribosyltransferase activity, not a generic transferase label.
proposed_replacement_terms: &id008
- id: GO:0003950
label: NAD+ poly-ADP-ribosyltransferase activity
- id: GO:0140806
label: NAD+-protein-aspartate ADP-ribosyltransferase activity
- id: GO:0140807
label: NAD+-protein-glutamate ADP-ribosyltransferase activity
supported_by: *id004
- term:
id: GO:0016757
label: glycosyltransferase activity
evidence_type: IEA
original_reference_id: GO_REF:0000043
review:
summary: glycosyltransferase activity is too broad for TNKS catalytic activity.
action: MODIFY
reason: The supported activity is NAD+-dependent protein
ADP-ribosyltransferase/poly-ADP-ribosyltransferase activity, not a generic transferase label.
proposed_replacement_terms: *id008
supported_by: *id004
- term:
id: GO:0016779
label: nucleotidyltransferase activity
evidence_type: IEA
original_reference_id: GO_REF:0000043
review:
summary: nucleotidyltransferase activity is too broad for TNKS catalytic activity.
action: MODIFY
reason: The supported activity is NAD+-dependent protein
ADP-ribosyltransferase/poly-ADP-ribosyltransferase activity, not a generic transferase label.
proposed_replacement_terms: *id008
supported_by: *id004
- term:
id: GO:0032212
label: positive regulation of telomere maintenance via telomerase
evidence_type: IEA
original_reference_id: GO_REF:0000117
review:
summary: positive regulation of telomere maintenance via telomerase is supported as a TNKS
telomere-associated role.
action: ACCEPT
reason: TNKS is recruited to telomeres through TRF1 and regulates telomere-associated protein
localization and telomere maintenance/capping outputs.
supported_by: *id002
- term:
id: GO:0046872
label: metal ion binding
evidence_type: IEA
original_reference_id: GO_REF:0000043
review:
summary: metal ion binding is plausible as a structural/catalytic-site feature but is not the
main function.
action: KEEP_AS_NON_CORE
reason: Recent structural synthesis supports a zinc-binding motif in the catalytic acceptor-site
architecture, but the core molecular function is ADP-ribosyltransferase activity.
supported_by: &id019
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate
acceptor sites; a structural/functional synthesis in the retrieved literature notes
**preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic
features including an **HYE catalytic triad** and a catalytic acceptor-site architecture
containing a **CHCC-type zinc-binding motif** important for structural integrity of the
acceptor site.
- term:
id: GO:0051028
label: mRNA transport
evidence_type: IEA
original_reference_id: GO_REF:0000043
review:
summary: mRNA transport is a context-specific transport-related role rather than the primary
TNKS function.
action: KEEP_AS_NON_CORE
reason: Transport annotations are secondary to TNKS substrate PARylation and pathway regulation.
supported_by:
- *id005
- *id006
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The UniProt accession **O95271** corresponds to **human tankyrase-1**,
encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes
**tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes
the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain)
and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via
NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
- term:
id: GO:0051301
label: cell division
evidence_type: IEA
original_reference_id: GO_REF:0000043
review:
summary: cell division is supported as a mitotic or telomere-cohesion output of TNKS activity.
action: KEEP_AS_NON_CORE
reason: These cell-cycle phenotypes are downstream of TNKS PARylation of substrates such as NuMA
or telomere-associated factors, but the core activity is ADP-ribosyltransferase activity.
supported_by:
- *id009
- *id010
- *id011
- term:
id: GO:0070198
label: protein localization to chromosome, telomeric region
evidence_type: IEA
original_reference_id: GO_REF:0000117
review:
summary: protein localization to chromosome, telomeric region is supported as a TNKS
telomere-associated role.
action: ACCEPT
reason: TNKS is recruited to telomeres through TRF1 and regulates telomere-associated protein
localization and telomere maintenance/capping outputs.
supported_by: *id002
- term:
id: GO:0070212
label: protein poly-ADP-ribosylation
evidence_type: IEA
original_reference_id: GO_REF:0000117
review:
summary: protein poly-ADP-ribosylation is a direct TNKS catalytic process.
action: ACCEPT
reason: TNKS catalyzes protein PARylation and auto-PARylation of itself and binding partners.
supported_by: *id004
- term:
id: GO:0070213
label: protein auto-ADP-ribosylation
evidence_type: IEA
original_reference_id: GO_REF:0000117
review:
summary: protein auto-ADP-ribosylation is a direct TNKS catalytic process.
action: ACCEPT
reason: TNKS catalyzes protein PARylation and auto-PARylation of itself and binding partners.
supported_by: *id004
- term:
id: GO:0090263
label: positive regulation of canonical Wnt signaling pathway
evidence_type: IEA
original_reference_id: GO_REF:0000117
review:
summary: positive regulation of canonical Wnt signaling pathway is a canonical TNKS pathway
output through AXIN PARylation.
action: ACCEPT
reason: TNKS PARylates AXIN1/2 to promote RNF146-dependent AXIN degradation, thereby increasing
Wnt/beta-catenin pathway output.
supported_by: *id007
- term:
id: GO:0140806
label: NAD+-protein-aspartate ADP-ribosyltransferase activity
evidence_type: IEA
original_reference_id: GO_REF:0000116
review:
summary: NAD+-protein-aspartate ADP-ribosyltransferase activity is a core TNKS catalytic
molecular function.
action: ACCEPT
reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and
protein substrates, with acidic acceptor-residue specificity supported by recent structural
synthesis.
supported_by: *id004
- term:
id: GO:0140807
label: NAD+-protein-glutamate ADP-ribosyltransferase activity
evidence_type: IEA
original_reference_id: GO_REF:0000116
review:
summary: NAD+-protein-glutamate ADP-ribosyltransferase activity is a core TNKS catalytic
molecular function.
action: ACCEPT
reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and
protein substrates, with acidic acceptor-residue specificity supported by recent structural
synthesis.
supported_by: *id004
- term:
id: GO:1904355
label: positive regulation of telomere capping
evidence_type: IEA
original_reference_id: GO_REF:0000117
review:
summary: positive regulation of telomere capping is supported as a TNKS telomere-associated
role.
action: ACCEPT
reason: TNKS is recruited to telomeres through TRF1 and regulates telomere-associated protein
localization and telomere maintenance/capping outputs.
supported_by: *id002
- term:
id: GO:1904357
label: negative regulation of telomere maintenance via telomere lengthening
evidence_type: IEA
original_reference_id: GO_REF:0000117
review:
summary: Negative regulation of telomere maintenance via telomere lengthening is not justified
by the current TNKS synthesis.
action: MARK_AS_OVER_ANNOTATED
reason: Canonical TNKS/TRF1 evidence supports release of TRF1 from telomeres and promotion of
telomere elongation; the negative-direction annotation should not be accepted without
context-specific evidence.
proposed_replacement_terms:
- id: GO:1904358
label: positive regulation of telomere maintenance via telomere lengthening
- id: GO:0032212
label: positive regulation of telomere maintenance via telomerase
supported_by:
- &id016
reference_id: PMID:12782650
supporting_text: ADP-ribosylation of TRF1 by tankyrase 1 released TRF1 from telomeres and
promoted telomere elongation.
- &id017
reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Telomeres**: recruitment via the telomeric factor **TRF1** (consistent with
roles in telomere biology).'
- term:
id: GO:1990404
label: NAD+-protein mono-ADP-ribosyltransferase activity
evidence_type: IEA
original_reference_id: GO_REF:0000117
review:
summary: NAD+-protein mono-ADP-ribosyltransferase activity is a core TNKS catalytic molecular
function.
action: ACCEPT
reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and
protein substrates, with acidic acceptor-residue specificity supported by recent structural
synthesis.
supported_by: *id004
- term:
id: GO:0005515
label: protein binding
evidence_type: IPI
original_reference_id: PMID:12080061
review:
summary: Protein binding is supported but too generic for TNKS substrate recognition.
action: MARK_AS_OVER_ANNOTATED
reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes
ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
supported_by:
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The UniProt accession **O95271** corresponds to **human tankyrase-1**,
encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes
**tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes
the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain)
and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via
NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: 'Tankyrase-1 is a **multidomain “scaffold-enzyme”**:'
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family
that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and
protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).'
- term:
id: GO:0005515
label: protein binding
evidence_type: IPI
original_reference_id: PMID:14596906
review:
summary: Protein binding is supported but too generic for TNKS substrate recognition.
action: MARK_AS_OVER_ANNOTATED
reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes
ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
supported_by:
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The UniProt accession **O95271** corresponds to **human tankyrase-1**,
encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes
**tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes
the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain)
and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via
NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: 'Tankyrase-1 is a **multidomain “scaffold-enzyme”**:'
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family
that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and
protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).'
- term:
id: GO:0005515
label: protein binding
evidence_type: IPI
original_reference_id: PMID:17003112
review:
summary: Protein binding is supported but too generic for TNKS substrate recognition.
action: MARK_AS_OVER_ANNOTATED
reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes
ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
supported_by:
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The UniProt accession **O95271** corresponds to **human tankyrase-1**,
encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes
**tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes
the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain)
and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via
NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: 'Tankyrase-1 is a **multidomain “scaffold-enzyme”**:'
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family
that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and
protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).'
- term:
id: GO:0005515
label: protein binding
evidence_type: IPI
original_reference_id: PMID:17043677
review:
summary: Protein binding is supported but too generic for TNKS substrate recognition.
action: MARK_AS_OVER_ANNOTATED
reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes
ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
supported_by:
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The UniProt accession **O95271** corresponds to **human tankyrase-1**,
encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes
**tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes
the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain)
and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via
NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: 'Tankyrase-1 is a **multidomain “scaffold-enzyme”**:'
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family
that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and
protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).'
- term:
id: GO:0005515
label: protein binding
evidence_type: IPI
original_reference_id: PMID:19759537
review:
summary: Protein binding is supported but too generic for TNKS substrate recognition.
action: MARK_AS_OVER_ANNOTATED
reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes
ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
supported_by:
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The UniProt accession **O95271** corresponds to **human tankyrase-1**,
encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes
**tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes
the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain)
and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via
NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: 'Tankyrase-1 is a **multidomain “scaffold-enzyme”**:'
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family
that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and
protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).'
- term:
id: GO:0005515
label: protein binding
evidence_type: IPI
original_reference_id: PMID:20696165
review:
summary: Protein binding is supported but too generic for TNKS substrate recognition.
action: MARK_AS_OVER_ANNOTATED
reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes
ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
supported_by:
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The UniProt accession **O95271** corresponds to **human tankyrase-1**,
encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes
**tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes
the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain)
and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via
NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: 'Tankyrase-1 is a **multidomain “scaffold-enzyme”**:'
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family
that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and
protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).'
- term:
id: GO:0005515
label: protein binding
evidence_type: IPI
original_reference_id: PMID:21251231
review:
summary: Protein binding is supported but too generic for TNKS substrate recognition.
action: MARK_AS_OVER_ANNOTATED
reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes
ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
supported_by:
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The UniProt accession **O95271** corresponds to **human tankyrase-1**,
encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes
**tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes
the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain)
and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via
NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: 'Tankyrase-1 is a **multidomain “scaffold-enzyme”**:'
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family
that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and
protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).'
- term:
id: GO:0005515
label: protein binding
evidence_type: IPI
original_reference_id: PMID:21799911
review:
summary: Protein binding is supported but too generic for TNKS substrate recognition.
action: MARK_AS_OVER_ANNOTATED
reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes
ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
supported_by:
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The UniProt accession **O95271** corresponds to **human tankyrase-1**,
encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes
**tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes
the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain)
and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via
NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: 'Tankyrase-1 is a **multidomain “scaffold-enzyme”**:'
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family
that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and
protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).'
- term:
id: GO:0005515
label: protein binding
evidence_type: IPI
original_reference_id: PMID:22699936
review:
summary: Protein binding is supported but too generic for TNKS substrate recognition.
action: MARK_AS_OVER_ANNOTATED
reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes
ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
supported_by:
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The UniProt accession **O95271** corresponds to **human tankyrase-1**,
encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes
**tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes
the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain)
and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via
NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: 'Tankyrase-1 is a **multidomain “scaffold-enzyme”**:'
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family
that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and
protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).'
- term:
id: GO:0005515
label: protein binding
evidence_type: IPI
original_reference_id: PMID:25327252
review:
summary: Protein binding is supported but too generic for TNKS substrate recognition.
action: MARK_AS_OVER_ANNOTATED
reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes
ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
supported_by:
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The UniProt accession **O95271** corresponds to **human tankyrase-1**,
encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes
**tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes
the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain)
and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via
NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: 'Tankyrase-1 is a **multidomain “scaffold-enzyme”**:'
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family
that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and
protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).'
- term:
id: GO:0005515
label: protein binding
evidence_type: IPI
original_reference_id: PMID:26373281
review:
summary: Protein binding is supported but too generic for TNKS substrate recognition.
action: MARK_AS_OVER_ANNOTATED
reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes
ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
supported_by:
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The UniProt accession **O95271** corresponds to **human tankyrase-1**,
encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes
**tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes
the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain)
and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via
NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: 'Tankyrase-1 is a **multidomain “scaffold-enzyme”**:'
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family
that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and
protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).'
- term:
id: GO:0005515
label: protein binding
evidence_type: IPI
original_reference_id: PMID:26496610
review:
summary: Protein binding is supported but too generic for TNKS substrate recognition.
action: MARK_AS_OVER_ANNOTATED
reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes
ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
supported_by:
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The UniProt accession **O95271** corresponds to **human tankyrase-1**,
encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes
**tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes
the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain)
and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via
NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: 'Tankyrase-1 is a **multidomain “scaffold-enzyme”**:'
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family
that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and
protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).'
- term:
id: GO:0005515
label: protein binding
evidence_type: IPI
original_reference_id: PMID:26972000
review:
summary: Protein binding is supported but too generic for TNKS substrate recognition.
action: MARK_AS_OVER_ANNOTATED
reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes
ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
supported_by:
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The UniProt accession **O95271** corresponds to **human tankyrase-1**,
encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes
**tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes
the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain)
and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via
NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: 'Tankyrase-1 is a **multidomain “scaffold-enzyme”**:'
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family
that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and
protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).'
- term:
id: GO:0005515
label: protein binding
evidence_type: IPI
original_reference_id: PMID:28514442
review:
summary: Protein binding is supported but too generic for TNKS substrate recognition.
action: MARK_AS_OVER_ANNOTATED
reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes
ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
supported_by:
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The UniProt accession **O95271** corresponds to **human tankyrase-1**,
encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes
**tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes
the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain)
and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via
NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: 'Tankyrase-1 is a **multidomain “scaffold-enzyme”**:'
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family
that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and
protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).'
- term:
id: GO:0005515
label: protein binding
evidence_type: IPI
original_reference_id: PMID:31413325
review:
summary: Protein binding is supported but too generic for TNKS substrate recognition.
action: MARK_AS_OVER_ANNOTATED
reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes
ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
supported_by:
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The UniProt accession **O95271** corresponds to **human tankyrase-1**,
encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes
**tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes
the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain)
and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via
NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: 'Tankyrase-1 is a **multidomain “scaffold-enzyme”**:'
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family
that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and
protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).'
- term:
id: GO:0005515
label: protein binding
evidence_type: IPI
original_reference_id: PMID:32296183
review:
summary: Protein binding is supported but too generic for TNKS substrate recognition.
action: MARK_AS_OVER_ANNOTATED
reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes
ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
supported_by:
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The UniProt accession **O95271** corresponds to **human tankyrase-1**,
encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes
**tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes
the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain)
and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via
NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: 'Tankyrase-1 is a **multidomain “scaffold-enzyme”**:'
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family
that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and
protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).'
- term:
id: GO:0005515
label: protein binding
evidence_type: IPI
original_reference_id: PMID:33961781
review:
summary: Protein binding is supported but too generic for TNKS substrate recognition.
action: MARK_AS_OVER_ANNOTATED
reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes
ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
supported_by:
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The UniProt accession **O95271** corresponds to **human tankyrase-1**,
encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes
**tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes
the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain)
and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via
NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: 'Tankyrase-1 is a **multidomain “scaffold-enzyme”**:'
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family
that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and
protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).'
- term:
id: GO:0005515
label: protein binding
evidence_type: IPI
original_reference_id: PMID:40205054
review:
summary: Protein binding is supported but too generic for TNKS substrate recognition.
action: MARK_AS_OVER_ANNOTATED
reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes
ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
supported_by:
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The UniProt accession **O95271** corresponds to **human tankyrase-1**,
encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes
**tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes
the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain)
and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via
NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: 'Tankyrase-1 is a **multidomain “scaffold-enzyme”**:'
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family
that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and
protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).'
- term:
id: GO:0005829
label: cytosol
evidence_type: IEA
original_reference_id: GO_REF:0000107
review:
summary: cytosol localization is consistent with TNKS multi-compartment activity.
action: ACCEPT
reason: TNKS acts in nuclear/telomeric and cytoplasmic signaling contexts, including Wnt pathway
regulation.
supported_by: *id001
- term:
id: GO:0090263
label: positive regulation of canonical Wnt signaling pathway
evidence_type: TAS
original_reference_id: Reactome:R-HSA-4641257
review:
summary: positive regulation of canonical Wnt signaling pathway is a canonical TNKS pathway
output through AXIN PARylation.
action: ACCEPT
reason: TNKS PARylates AXIN1/2 to promote RNF146-dependent AXIN degradation, thereby increasing
Wnt/beta-catenin pathway output.
supported_by: *id007
- term:
id: GO:0003950
label: NAD+ poly-ADP-ribosyltransferase activity
evidence_type: TAS
original_reference_id: Reactome:R-HSA-3640858
review:
summary: NAD+ poly-ADP-ribosyltransferase activity is a core TNKS catalytic molecular function.
action: ACCEPT
reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and
protein substrates, with acidic acceptor-residue specificity supported by recent structural
synthesis.
supported_by: *id004
- term:
id: GO:0003950
label: NAD+ poly-ADP-ribosyltransferase activity
evidence_type: TAS
original_reference_id: Reactome:R-HSA-8948800
review:
summary: NAD+ poly-ADP-ribosyltransferase activity is a core TNKS catalytic molecular function.
action: ACCEPT
reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and
protein substrates, with acidic acceptor-residue specificity supported by recent structural
synthesis.
supported_by: *id004
- term:
id: GO:0010521
label: telomerase inhibitor activity
evidence_type: IMP
original_reference_id: PMID:25939383
review:
summary: Telomerase inhibitor activity is not the best direct molecular-function description for
TNKS.
action: MARK_AS_OVER_ANNOTATED
reason: TNKS regulates telomere maintenance through PARylation of telomere-associated proteins
such as TRF1; the direct activity should be represented as ADP-ribosyltransferase activity and
telomere-maintenance processes.
proposed_replacement_terms: *id008
supported_by:
- *id012
- *id013
- *id014
- *id011
- *id015
- term:
id: GO:0010521
label: telomerase inhibitor activity
evidence_type: IDA
original_reference_id: PMID:9822378
review:
summary: Telomerase inhibitor activity is not the best direct molecular-function description for
TNKS.
action: MARK_AS_OVER_ANNOTATED
reason: TNKS regulates telomere maintenance through PARylation of telomere-associated proteins
such as TRF1; the direct activity should be represented as ADP-ribosyltransferase activity and
telomere-maintenance processes.
proposed_replacement_terms: *id008
supported_by:
- *id012
- *id013
- *id014
- *id011
- *id015
- term:
id: GO:0032210
label: regulation of telomere maintenance via telomerase
evidence_type: IDA
original_reference_id: PMID:9822378
review:
summary: regulation of telomere maintenance via telomerase is supported as a TNKS
telomere-associated role.
action: ACCEPT
reason: TNKS is recruited to telomeres through TRF1 and regulates telomere-associated protein
localization and telomere maintenance/capping outputs.
supported_by: *id002
- term:
id: GO:1904358
label: positive regulation of telomere maintenance via telomere lengthening
evidence_type: IDA
original_reference_id: PMID:12782650
review:
summary: positive regulation of telomere maintenance via telomere lengthening is supported as a
TNKS telomere-associated role.
action: ACCEPT
reason: TNKS is recruited to telomeres through TRF1 and regulates telomere-associated protein
localization and telomere maintenance/capping outputs.
supported_by: *id002
- term:
id: GO:1990404
label: NAD+-protein mono-ADP-ribosyltransferase activity
evidence_type: IDA
original_reference_id: PMID:15133513
review:
summary: NAD+-protein mono-ADP-ribosyltransferase activity is a core TNKS catalytic molecular
function.
action: ACCEPT
reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and
protein substrates, with acidic acceptor-residue specificity supported by recent structural
synthesis.
supported_by: *id004
- term:
id: GO:1990404
label: NAD+-protein mono-ADP-ribosyltransferase activity
evidence_type: IDA
original_reference_id: PMID:9822378
review:
summary: NAD+-protein mono-ADP-ribosyltransferase activity is a core TNKS catalytic molecular
function.
action: ACCEPT
reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and
protein substrates, with acidic acceptor-residue specificity supported by recent structural
synthesis.
supported_by: *id004
- term:
id: GO:0070212
label: protein poly-ADP-ribosylation
evidence_type: IDA
original_reference_id: PMID:25043379
review:
summary: protein poly-ADP-ribosylation is a direct TNKS catalytic process.
action: ACCEPT
reason: TNKS catalyzes protein PARylation and auto-PARylation of itself and binding partners.
supported_by: *id004
- term:
id: GO:1990404
label: NAD+-protein mono-ADP-ribosyltransferase activity
evidence_type: IDA
original_reference_id: PMID:25043379
review:
summary: NAD+-protein mono-ADP-ribosyltransferase activity is a core TNKS catalytic molecular
function.
action: ACCEPT
reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and
protein substrates, with acidic acceptor-residue specificity supported by recent structural
synthesis.
supported_by: *id004
- term:
id: GO:0003950
label: NAD+ poly-ADP-ribosyltransferase activity
evidence_type: IDA
original_reference_id: PMID:16076287
review:
summary: NAD+ poly-ADP-ribosyltransferase activity is a core TNKS catalytic molecular function.
action: ACCEPT
reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and
protein substrates, with acidic acceptor-residue specificity supported by recent structural
synthesis.
supported_by: *id004
- term:
id: GO:0005515
label: protein binding
evidence_type: IPI
original_reference_id: PMID:16076287
review:
summary: Protein binding is supported but too generic for TNKS substrate recognition.
action: MARK_AS_OVER_ANNOTATED
reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes
ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
supported_by:
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The UniProt accession **O95271** corresponds to **human tankyrase-1**,
encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes
**tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes
the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain)
and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via
NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: 'Tankyrase-1 is a **multidomain “scaffold-enzyme”**:'
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family
that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and
protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).'
- term:
id: GO:0070212
label: protein poly-ADP-ribosylation
evidence_type: IDA
original_reference_id: PMID:16076287
review:
summary: protein poly-ADP-ribosylation is a direct TNKS catalytic process.
action: ACCEPT
reason: TNKS catalyzes protein PARylation and auto-PARylation of itself and binding partners.
supported_by: *id004
- term:
id: GO:0097431
label: mitotic spindle pole
evidence_type: IDA
original_reference_id: PMID:16076287
review:
summary: mitotic spindle pole localization is supported by TNKS spindle/centrosome-associated
functions.
action: ACCEPT
reason: TNKS is recruited to spindle poles via NuMA and is required for NuMA PARylation and
spindle organization.
supported_by: *id003
- term:
id: GO:0005515
label: protein binding
evidence_type: IPI
original_reference_id: PMID:11854288
review:
summary: Protein binding is supported but too generic for TNKS substrate recognition.
action: MARK_AS_OVER_ANNOTATED
reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes
ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
supported_by:
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The UniProt accession **O95271** corresponds to **human tankyrase-1**,
encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes
**tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes
the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain)
and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via
NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: 'Tankyrase-1 is a **multidomain “scaffold-enzyme”**:'
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family
that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and
protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).'
- term:
id: GO:0003950
label: NAD+ poly-ADP-ribosyltransferase activity
evidence_type: IDA
original_reference_id: PMID:11854288
review:
summary: NAD+ poly-ADP-ribosyltransferase activity is a core TNKS catalytic molecular function.
action: ACCEPT
reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and
protein substrates, with acidic acceptor-residue specificity supported by recent structural
synthesis.
supported_by: *id004
- term:
id: GO:1904908
label: negative regulation of maintenance of mitotic sister chromatid cohesion, telomeric
evidence_type: IMP
original_reference_id: PMID:26373281
review:
summary: negative regulation of maintenance of mitotic sister chromatid cohesion, telomeric is
supported as a mitotic or telomere-cohesion output of TNKS activity.
action: KEEP_AS_NON_CORE
reason: These cell-cycle phenotypes are downstream of TNKS PARylation of substrates such as NuMA
or telomere-associated factors, but the core activity is ADP-ribosyltransferase activity.
supported_by:
- *id009
- *id010
- *id011
- term:
id: GO:0000781
label: chromosome, telomeric region
evidence_type: IDA
original_reference_id: PMID:9822378
review:
summary: Chromosome telomeric region localization is supported by TNKS recruitment through TRF1.
action: ACCEPT
reason: Telomere recruitment is one of the hallmark TNKS localization contexts.
supported_by: *id002
- term:
id: GO:0042393
label: histone binding
evidence_type: IPI
original_reference_id: PMID:26373281
review:
summary: Histone binding is supported in a telomere-cohesion context but is secondary to TNKS
ADP-ribosyltransferase function.
action: KEEP_AS_NON_CORE
reason: This interaction fits a specialized telomere/chromatin context rather than the primary
TNKS catalytic function.
supported_by:
- reference_id: PMID:26373281
supporting_text: In the absence of ATRX, the histone variant macroH2A1.1 binds to the
poly(ADP-ribose) polymerase tankyrase 1, preventing it from localizing to telomeres and
resolving cohesion.
- term:
id: GO:0005515
label: protein binding
evidence_type: IPI
original_reference_id: PMID:15133513
review:
summary: Protein binding is supported but too generic for TNKS substrate recognition.
action: MARK_AS_OVER_ANNOTATED
reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes
ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
supported_by:
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The UniProt accession **O95271** corresponds to **human tankyrase-1**,
encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes
**tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes
the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain)
and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via
NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: 'Tankyrase-1 is a **multidomain “scaffold-enzyme”**:'
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family
that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and
protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).'
- term:
id: GO:0032212
label: positive regulation of telomere maintenance via telomerase
evidence_type: IDA
original_reference_id: PMID:12782650
review:
summary: positive regulation of telomere maintenance via telomerase is supported as a TNKS
telomere-associated role.
action: ACCEPT
reason: TNKS is recruited to telomeres through TRF1 and regulates telomere-associated protein
localization and telomere maintenance/capping outputs.
supported_by: *id002
- term:
id: GO:0070198
label: protein localization to chromosome, telomeric region
evidence_type: IMP
original_reference_id: PMID:15133513
review:
summary: protein localization to chromosome, telomeric region is supported as a TNKS
telomere-associated role.
action: ACCEPT
reason: TNKS is recruited to telomeres through TRF1 and regulates telomere-associated protein
localization and telomere maintenance/capping outputs.
supported_by: *id002
- term:
id: GO:0070212
label: protein poly-ADP-ribosylation
evidence_type: IMP
original_reference_id: PMID:25939383
review:
summary: protein poly-ADP-ribosylation is a direct TNKS catalytic process.
action: ACCEPT
reason: TNKS catalyzes protein PARylation and auto-PARylation of itself and binding partners.
supported_by: *id004
- term:
id: GO:0070212
label: protein poly-ADP-ribosylation
evidence_type: IDA
original_reference_id: PMID:9822378
review:
summary: protein poly-ADP-ribosylation is a direct TNKS catalytic process.
action: ACCEPT
reason: TNKS catalyzes protein PARylation and auto-PARylation of itself and binding partners.
supported_by: *id004
- term:
id: GO:1904357
label: negative regulation of telomere maintenance via telomere lengthening
evidence_type: IMP
original_reference_id: PMID:25939383
review:
summary: Negative regulation of telomere maintenance via telomere lengthening is not justified
by the current TNKS synthesis.
action: MARK_AS_OVER_ANNOTATED
reason: Canonical TNKS/TRF1 evidence supports release of TRF1 from telomeres and promotion of
telomere elongation; the negative-direction annotation should not be accepted without
context-specific evidence.
proposed_replacement_terms:
- id: GO:1904358
label: positive regulation of telomere maintenance via telomere lengthening
- id: GO:0032212
label: positive regulation of telomere maintenance via telomerase
supported_by:
- *id016
- *id017
- term:
id: GO:0090263
label: positive regulation of canonical Wnt signaling pathway
evidence_type: IMP
original_reference_id: PMID:25939383
review:
summary: positive regulation of canonical Wnt signaling pathway is a canonical TNKS pathway
output through AXIN PARylation.
action: ACCEPT
reason: TNKS PARylates AXIN1/2 to promote RNF146-dependent AXIN degradation, thereby increasing
Wnt/beta-catenin pathway output.
supported_by: *id007
- term:
id: GO:1904355
label: positive regulation of telomere capping
evidence_type: IMP
original_reference_id: PMID:25939383
review:
summary: positive regulation of telomere capping is supported as a TNKS telomere-associated
role.
action: ACCEPT
reason: TNKS is recruited to telomeres through TRF1 and regulates telomere-associated protein
localization and telomere maintenance/capping outputs.
supported_by: *id002
- term:
id: GO:0003950
label: NAD+ poly-ADP-ribosyltransferase activity
evidence_type: IDA
original_reference_id: PMID:21270334
review:
summary: NAD+ poly-ADP-ribosyltransferase activity is a core TNKS catalytic molecular function.
action: ACCEPT
reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and
protein substrates, with acidic acceptor-residue specificity supported by recent structural
synthesis.
supported_by: *id004
- term:
id: GO:0005829
label: cytosol
evidence_type: TAS
original_reference_id: Reactome:R-HSA-3640844
review:
summary: cytosol localization is consistent with TNKS multi-compartment activity.
action: ACCEPT
reason: TNKS acts in nuclear/telomeric and cytoplasmic signaling contexts, including Wnt pathway
regulation.
supported_by: *id001
- term:
id: GO:0005829
label: cytosol
evidence_type: TAS
original_reference_id: Reactome:R-HSA-3640858
review:
summary: cytosol localization is consistent with TNKS multi-compartment activity.
action: ACCEPT
reason: TNKS acts in nuclear/telomeric and cytoplasmic signaling contexts, including Wnt pathway
regulation.
supported_by: *id001
- term:
id: GO:0005829
label: cytosol
evidence_type: TAS
original_reference_id: Reactome:R-HSA-3640861
review:
summary: cytosol localization is consistent with TNKS multi-compartment activity.
action: ACCEPT
reason: TNKS acts in nuclear/telomeric and cytoplasmic signaling contexts, including Wnt pathway
regulation.
supported_by: *id001
- term:
id: GO:0005829
label: cytosol
evidence_type: TAS
original_reference_id: Reactome:R-HSA-3640862
review:
summary: cytosol localization is consistent with TNKS multi-compartment activity.
action: ACCEPT
reason: TNKS acts in nuclear/telomeric and cytoplasmic signaling contexts, including Wnt pathway
regulation.
supported_by: *id001
- term:
id: GO:0005829
label: cytosol
evidence_type: TAS
original_reference_id: Reactome:R-HSA-3640872
review:
summary: cytosol localization is consistent with TNKS multi-compartment activity.
action: ACCEPT
reason: TNKS acts in nuclear/telomeric and cytoplasmic signaling contexts, including Wnt pathway
regulation.
supported_by: *id001
- term:
id: GO:0005829
label: cytosol
evidence_type: TAS
original_reference_id: Reactome:R-HSA-3640874
review:
summary: cytosol localization is consistent with TNKS multi-compartment activity.
action: ACCEPT
reason: TNKS acts in nuclear/telomeric and cytoplasmic signaling contexts, including Wnt pathway
regulation.
supported_by: *id001
- term:
id: GO:0005829
label: cytosol
evidence_type: TAS
original_reference_id: Reactome:R-HSA-5262606
review:
summary: cytosol localization is consistent with TNKS multi-compartment activity.
action: ACCEPT
reason: TNKS acts in nuclear/telomeric and cytoplasmic signaling contexts, including Wnt pathway
regulation.
supported_by: *id001
- term:
id: GO:0005829
label: cytosol
evidence_type: TAS
original_reference_id: Reactome:R-HSA-8948800
review:
summary: cytosol localization is consistent with TNKS multi-compartment activity.
action: ACCEPT
reason: TNKS acts in nuclear/telomeric and cytoplasmic signaling contexts, including Wnt pathway
regulation.
supported_by: *id001
- term:
id: GO:0003950
label: NAD+ poly-ADP-ribosyltransferase activity
evidence_type: IDA
original_reference_id: PMID:22864114
review:
summary: NAD+ poly-ADP-ribosyltransferase activity is a core TNKS catalytic molecular function.
action: ACCEPT
reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and
protein substrates, with acidic acceptor-residue specificity supported by recent structural
synthesis.
supported_by: *id004
- term:
id: GO:0005515
label: protein binding
evidence_type: IPI
original_reference_id: PMID:22864114
review:
summary: Protein binding is supported but too generic for TNKS substrate recognition.
action: MARK_AS_OVER_ANNOTATED
reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes
ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
supported_by:
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The UniProt accession **O95271** corresponds to **human tankyrase-1**,
encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes
**tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes
the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain)
and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via
NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: 'Tankyrase-1 is a **multidomain “scaffold-enzyme”**:'
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family
that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and
protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).'
- term:
id: GO:0005794
label: Golgi apparatus
evidence_type: IDA
original_reference_id: PMID:22864114
review:
summary: Golgi apparatus is a plausible reported localization but not the dominant site of TNKS
core activity.
action: KEEP_AS_NON_CORE
reason: TNKS has multi-compartment partner-mediated localization; the best-supported core
locations are cytosol/cytoplasm, nucleus/telomeres, and spindle-associated sites.
supported_by: *id001
- term:
id: GO:0045944
label: positive regulation of transcription by RNA polymerase II
evidence_type: IDA
original_reference_id: PMID:19245366
review:
summary: Positive regulation of transcription by RNA polymerase II is an indirect
Wnt/beta-catenin or YAP pathway output.
action: KEEP_AS_NON_CORE
reason: TNKS regulates transcriptional outputs indirectly by PARylating pathway regulators such
as AXIN rather than functioning as a transcription factor.
supported_by: *id007
- term:
id: GO:0000209
label: protein polyubiquitination
evidence_type: IDA
original_reference_id: PMID:19759537
review:
summary: Protein polyubiquitination captures a downstream consequence of TNKS PARylation but
misstates the direct TNKS activity.
action: MODIFY
reason: TNKS does not function as the E3 ubiquitin ligase; it PARylates substrates that are then
recognized by PAR-binding ubiquitin ligases such as RNF146.
proposed_replacement_terms: *id018
supported_by:
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The canonical E3 ligase is **RNF146**, described as a **PAR-directed E3**
that binds PARylated substrates (via a PAR-binding WWE domain recognizing iso-ADP-ribose)
and installs **K48-linked polyubiquitin chains**, driving proteasomal degradation. This
underlies a major mechanism by which TNKS controls the abundance of multiple signaling
proteins.
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: Multiple retrieved sources state that **tankyrase PARylates AXIN (AXIN1/2)**,
which promotes **RNF146-mediated ubiquitination** and **proteasomal degradation** of AXIN.
Loss of AXIN destabilizes the destruction complex, thereby **stabilizing β-catenin** and
increasing pathway output. Conversely, **tankyrase inhibition stabilizes AXIN** and reduces
cytosolic β-catenin and β-catenin–dependent transcription.
- term:
id: GO:0000209
label: protein polyubiquitination
evidence_type: IDA
original_reference_id: PMID:21478859
review:
summary: Protein polyubiquitination captures a downstream consequence of TNKS PARylation but
misstates the direct TNKS activity.
action: MODIFY
reason: TNKS does not function as the E3 ubiquitin ligase; it PARylates substrates that are then
recognized by PAR-binding ubiquitin ligases such as RNF146.
proposed_replacement_terms: *id018
supported_by:
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The canonical E3 ligase is **RNF146**, described as a **PAR-directed E3**
that binds PARylated substrates (via a PAR-binding WWE domain recognizing iso-ADP-ribose)
and installs **K48-linked polyubiquitin chains**, driving proteasomal degradation. This
underlies a major mechanism by which TNKS controls the abundance of multiple signaling
proteins.
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: Multiple retrieved sources state that **tankyrase PARylates AXIN (AXIN1/2)**,
which promotes **RNF146-mediated ubiquitination** and **proteasomal degradation** of AXIN.
Loss of AXIN destabilizes the destruction complex, thereby **stabilizing β-catenin** and
increasing pathway output. Conversely, **tankyrase inhibition stabilizes AXIN** and reduces
cytosolic β-catenin and β-catenin–dependent transcription.
- term:
id: GO:0003950
label: NAD+ poly-ADP-ribosyltransferase activity
evidence_type: IDA
original_reference_id: PMID:19759537
review:
summary: NAD+ poly-ADP-ribosyltransferase activity is a core TNKS catalytic molecular function.
action: ACCEPT
reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and
protein substrates, with acidic acceptor-residue specificity supported by recent structural
synthesis.
supported_by: *id004
- term:
id: GO:0003950
label: NAD+ poly-ADP-ribosyltransferase activity
evidence_type: IDA
original_reference_id: PMID:21478859
review:
summary: NAD+ poly-ADP-ribosyltransferase activity is a core TNKS catalytic molecular function.
action: ACCEPT
reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and
protein substrates, with acidic acceptor-residue specificity supported by recent structural
synthesis.
supported_by: *id004
- term:
id: GO:0005515
label: protein binding
evidence_type: IPI
original_reference_id: PMID:21478859
review:
summary: Protein binding is supported but too generic for TNKS substrate recognition.
action: MARK_AS_OVER_ANNOTATED
reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes
ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
supported_by:
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The UniProt accession **O95271** corresponds to **human tankyrase-1**,
encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes
**tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes
the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain)
and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via
NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: 'Tankyrase-1 is a **multidomain “scaffold-enzyme”**:'
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family
that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and
protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).'
- term:
id: GO:0070213
label: protein auto-ADP-ribosylation
evidence_type: IDA
original_reference_id: PMID:21478859
review:
summary: protein auto-ADP-ribosylation is a direct TNKS catalytic process.
action: ACCEPT
reason: TNKS catalyzes protein PARylation and auto-PARylation of itself and binding partners.
supported_by: *id004
- term:
id: GO:0090263
label: positive regulation of canonical Wnt signaling pathway
evidence_type: IMP
original_reference_id: PMID:19759537
review:
summary: positive regulation of canonical Wnt signaling pathway is a canonical TNKS pathway
output through AXIN PARylation.
action: ACCEPT
reason: TNKS PARylates AXIN1/2 to promote RNF146-dependent AXIN degradation, thereby increasing
Wnt/beta-catenin pathway output.
supported_by: *id007
- term:
id: GO:0070198
label: protein localization to chromosome, telomeric region
evidence_type: IMP
original_reference_id: PMID:18221737
review:
summary: protein localization to chromosome, telomeric region is supported as a TNKS
telomere-associated role.
action: ACCEPT
reason: TNKS is recruited to telomeres through TRF1 and regulates telomere-associated protein
localization and telomere maintenance/capping outputs.
supported_by: *id002
- term:
id: GO:0000242
label: pericentriolar material
evidence_type: TAS
original_reference_id: PMID:11454873
review:
summary: pericentriolar material localization is supported by TNKS spindle/centrosome-associated
functions.
action: ACCEPT
reason: TNKS is recruited to spindle poles via NuMA and is required for NuMA PARylation and
spindle organization.
supported_by: *id003
- term:
id: GO:0000781
label: chromosome, telomeric region
evidence_type: IDA
original_reference_id: PMID:11739745
review:
summary: Chromosome telomeric region localization is supported by TNKS recruitment through TRF1.
action: ACCEPT
reason: Telomere recruitment is one of the hallmark TNKS localization contexts.
supported_by: *id002
- term:
id: GO:0005643
label: nuclear pore
evidence_type: TAS
original_reference_id: PMID:11454873
review:
summary: nuclear pore is a plausible reported localization but not the dominant site of TNKS
core activity.
action: KEEP_AS_NON_CORE
reason: TNKS has multi-compartment partner-mediated localization; the best-supported core
locations are cytosol/cytoplasm, nucleus/telomeres, and spindle-associated sites.
supported_by: *id001
- term:
id: GO:0007052
label: mitotic spindle organization
evidence_type: TAS
original_reference_id: PMID:17026964
review:
summary: mitotic spindle organization is supported as a mitotic or telomere-cohesion output of
TNKS activity.
action: KEEP_AS_NON_CORE
reason: These cell-cycle phenotypes are downstream of TNKS PARylation of substrates such as NuMA
or telomere-associated factors, but the core activity is ADP-ribosyltransferase activity.
supported_by:
- *id009
- *id010
- *id011
- term:
id: GO:0008270
label: zinc ion binding
evidence_type: IDA
original_reference_id: PMID:18436240
review:
summary: zinc ion binding is plausible as a structural/catalytic-site feature but is not the
main function.
action: KEEP_AS_NON_CORE
reason: Recent structural synthesis supports a zinc-binding motif in the catalytic acceptor-site
architecture, but the core molecular function is ADP-ribosyltransferase activity.
supported_by: *id019
- term:
id: GO:0031965
label: nuclear membrane
evidence_type: TAS
original_reference_id: PMID:11454873
review:
summary: nuclear membrane is a plausible reported localization but not the dominant site of TNKS
core activity.
action: KEEP_AS_NON_CORE
reason: TNKS has multi-compartment partner-mediated localization; the best-supported core
locations are cytosol/cytoplasm, nucleus/telomeres, and spindle-associated sites.
supported_by: *id001
- term:
id: GO:0032212
label: positive regulation of telomere maintenance via telomerase
evidence_type: IMP
original_reference_id: PMID:11739745
review:
summary: positive regulation of telomere maintenance via telomerase is supported as a TNKS
telomere-associated role.
action: ACCEPT
reason: TNKS is recruited to telomeres through TRF1 and regulates telomere-associated protein
localization and telomere maintenance/capping outputs.
supported_by: *id002
- term:
id: GO:0032212
label: positive regulation of telomere maintenance via telomerase
evidence_type: IDA
original_reference_id: PMID:18221737
review:
summary: positive regulation of telomere maintenance via telomerase is supported as a TNKS
telomere-associated role.
action: ACCEPT
reason: TNKS is recruited to telomeres through TRF1 and regulates telomere-associated protein
localization and telomere maintenance/capping outputs.
supported_by: *id002
- term:
id: GO:0051225
label: spindle assembly
evidence_type: TAS
original_reference_id: PMID:17026964
review:
summary: spindle assembly is supported as a mitotic or telomere-cohesion output of TNKS
activity.
action: KEEP_AS_NON_CORE
reason: These cell-cycle phenotypes are downstream of TNKS PARylation of substrates such as NuMA
or telomere-associated factors, but the core activity is ADP-ribosyltransferase activity.
supported_by:
- *id009
- *id010
- *id011
- term:
id: GO:0018105
label: peptidyl-serine phosphorylation
evidence_type: IDA
original_reference_id: PMID:17026964
review:
summary: peptidyl-serine phosphorylation is not supported as a TNKS catalytic activity.
action: REMOVE
reason: TNKS is an ADP-ribosyltransferase, not a protein kinase catalyzing serine or threonine
phosphorylation.
supported_by: *id004
- term:
id: GO:0018107
label: peptidyl-threonine phosphorylation
evidence_type: IDA
original_reference_id: PMID:17026964
review:
summary: peptidyl-threonine phosphorylation is not supported as a TNKS catalytic activity.
action: REMOVE
reason: TNKS is an ADP-ribosyltransferase, not a protein kinase catalyzing serine or threonine
phosphorylation.
supported_by: *id004
- term:
id: GO:0005515
label: protein binding
evidence_type: IPI
original_reference_id: PMID:12768206
review:
summary: Protein binding is supported but too generic for TNKS substrate recognition.
action: MARK_AS_OVER_ANNOTATED
reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes
ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
supported_by:
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The UniProt accession **O95271** corresponds to **human tankyrase-1**,
encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes
**tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes
the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain)
and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via
NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: 'Tankyrase-1 is a **multidomain “scaffold-enzyme”**:'
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family
that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and
protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).'
- term:
id: GO:0003950
label: NAD+ poly-ADP-ribosyltransferase activity
evidence_type: IDA
original_reference_id: PMID:9822378
review:
summary: NAD+ poly-ADP-ribosyltransferase activity is a core TNKS catalytic molecular function.
action: ACCEPT
reason: TNKS is an NAD+-dependent PARP/ARTD enzyme that transfers ADP-ribose to itself and
protein substrates, with acidic acceptor-residue specificity supported by recent structural
synthesis.
supported_by: *id004
- term:
id: GO:0005515
label: protein binding
evidence_type: IPI
original_reference_id: PMID:9822378
review:
summary: Protein binding is supported but too generic for TNKS substrate recognition.
action: MARK_AS_OVER_ANNOTATED
reason: TNKS recognizes substrate proteins through ankyrin-repeat clusters and then catalyzes
ADP-ribosylation; generic protein binding hides the enzymatic mechanism.
supported_by:
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: The UniProt accession **O95271** corresponds to **human tankyrase-1**,
encoded by **TNKS** (synonyms **PARP5A, ARTD5**). Recent literature explicitly distinguishes
**tankyrase-1 (TNKS1/PARP5A/ARTD5)** from **tankyrase-2 (TNKS2/PARP5B/ARTD6)** and describes
the expected multidomain architecture (HPS–ankyrin repeats/ARCs–SAM–PARP catalytic domain)
and hallmark biology (Wnt/β-catenin via AXIN, telomere association via TRF1, spindle via
NuMA, GLUT4 vesicles via IRAP), matching the UniProt-provided domain/family context.
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: 'Tankyrase-1 is a **multidomain “scaffold-enzyme”**:'
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family
that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and
protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).'
references:
- id: GO_REF:0000033
title: Annotation inferences using phylogenetic trees
findings: []
- id: GO_REF:0000043
title: Gene Ontology annotation based on UniProtKB/Swiss-Prot keyword mapping
findings: []
- id: GO_REF:0000044
title: Gene Ontology annotation based on UniProtKB/Swiss-Prot Subcellular Location vocabulary
mapping, accompanied by conservative changes to GO terms applied by UniProt
findings: []
- id: GO_REF:0000107
title: Automatic transfer of experimentally verified manual GO annotation data to orthologs using
Ensembl Compara
findings: []
- id: GO_REF:0000116
title: Automatic Gene Ontology annotation based on Rhea mapping
findings: []
- id: GO_REF:0000117
title: Electronic Gene Ontology annotations created by ARBA machine learning models
findings: []
- id: GO_REF:0000120
title: Combined Automated Annotation using Multiple IEA Methods
findings: []
- id: PMID:11454873
title: TANK2, a new TRF1-associated poly(ADP-ribose) polymerase, causes rapid induction of cell
death upon overexpression.
findings: []
- id: PMID:11739745
title: >-
Role for the related poly(ADP-Ribose) polymerases tankyrase 1 and 2 at human
telomeres.
findings: []
- id: PMID:11854288
title: The telomeric poly(ADP-ribose) polymerase, tankyrase 1, contains multiple binding sites for
telomeric repeat binding factor 1 (TRF1) and a novel acceptor, 182-kDa tankyrase-binding protein
(TAB182).
findings: []
- id: PMID:12080061
title: Identification of a tankyrase-binding motif shared by IRAP, TAB182, and human TRF1 but not
mouse TRF1. NuMA contains this RXXPDG motif and is a novel tankyrase partner.
findings: []
- id: PMID:12768206
title: POT1 as a terminal transducer of TRF1 telomere length control.
findings: []
- id: PMID:12782650
title: TRF1 is degraded by ubiquitin-mediated proteolysis after release from telomeres.
findings: []
- id: PMID:14596906
title: The formin-binding protein 17, FBP17, binds via a TNKS binding motif to tankyrase, a
protein involved in telomere maintenance.
findings: []
- id: PMID:15133513
title: TIN2 is a tankyrase 1 PARP modulator in the TRF1 telomere length control complex.
findings: []
- id: PMID:16076287
title: NuMA is a major acceptor of poly(ADP-ribosyl)ation by tankyrase 1 in mitosis.
findings: []
- id: PMID:17003112
title: Posttranslational hydroxylation of ankyrin repeats in IkappaB proteins by the
hypoxia-inducible factor (HIF) asparaginyl hydroxylase, factor inhibiting HIF (FIH).
findings: []
- id: PMID:17026964
title: Mitotic phosphorylation of tankyrase, a PARP that promotes spindle assembly, by GSK3.
findings: []
- id: PMID:17043677
title: 'Disrupted in Schizophrenia 1 Interactome: evidence for the close connectivity of risk genes
and a potential synaptic basis for schizophrenia.'
findings: []
- id: PMID:18221737
title: Telomere elongation by a mutant tankyrase 1 without TRF1 poly(ADP-ribosyl)ation.
findings: []
- id: PMID:18436240
title: Zinc binding catalytic domain of human tankyrase 1.
findings: []
- id: PMID:19245366
title: MYPT1, the targeting subunit of smooth-muscle myosin phosphatase, is a substrate for the
asparaginyl hydroxylase factor inhibiting hypoxia-inducible factor (FIH).
findings: []
- id: PMID:19759537
title: Tankyrase inhibition stabilizes axin and antagonizes Wnt signalling.
findings: []
- id: PMID:20696165
title: Tankyrase-1 assembly to large protein complexes blocks its telomeric function.
findings: []
- id: PMID:21251231
title: Factor-inhibiting hypoxia-inducible factor (FIH) catalyses the post-translational
hydroxylation of histidinyl residues within ankyrin repeat domains.
findings: []
- id: PMID:21270334
title: Poly(ADP-ribose) polymerase 3 (PARP3), a newcomer in cellular response to DNA damage and
mitotic progression.
findings: []
- id: PMID:21478859
title: RNF146 is a poly(ADP-ribose)-directed E3 ligase that regulates axin degradation and Wnt
signalling.
findings: []
- id: PMID:21799911
title: Ubiquitin ligase RNF146 regulates tankyrase and Axin to promote Wnt signaling.
findings: []
- id: PMID:22699936
title: Tankyrase 1 regulates centrosome function by controlling CPAP stability.
findings: []
- id: PMID:22864114
title: Poly-ADP ribosylation of Miki by tankyrase-1 promotes centrosome maturation.
findings: []
- id: PMID:25043379
title: Family-wide analysis of poly(ADP-ribose) polymerase activity.
findings: []
- id: PMID:25327252
title: Allosteric activation of the RNF146 ubiquitin ligase by a poly(ADP-ribosyl)ation signal.
findings: []
- id: PMID:25939383
title: Disruption of Wnt/β-Catenin Signaling and Telomeric Shortening Are Inextricable
Consequences of Tankyrase Inhibition in Human Cells.
findings: []
- id: PMID:26373281
title: Loss of ATRX Suppresses Resolution of Telomere Cohesion to Control Recombination in ALT
Cancer Cells.
findings: []
- id: PMID:26496610
title: A human interactome in three quantitative dimensions organized by stoichiometries and
abundances.
findings: []
- id: PMID:26972000
title: Substrate-Trapped Interactors of PHD3 and FIH Cluster in Distinct Signaling Pathways.
findings: []
- id: PMID:28514442
title: Architecture of the human interactome defines protein communities and disease networks.
findings: []
- id: PMID:31413325
title: HENA, heterogeneous network-based data set for Alzheimer's disease.
findings: []
- id: PMID:32296183
title: A reference map of the human binary protein interactome.
findings: []
- id: PMID:33961781
title: Dual proteome-scale networks reveal cell-specific remodeling of the human interactome.
findings: []
- id: PMID:40205054
title: Multimodal cell maps as a foundation for structural and functional genomics.
findings: []
- id: PMID:9822378
title: Tankyrase, a poly(ADP-ribose) polymerase at human telomeres.
findings: []
- id: Reactome:R-HSA-3640844
title: RNF146 binds RibC-AXIN:TNKS complex
findings: []
- id: Reactome:R-HSA-3640858
title: Tankyrase ADP-ribosylates AXIN
findings: []
- id: Reactome:R-HSA-3640861
title: RNF146 ubiquitinates ADP-ribosylated AXIN
findings: []
- id: Reactome:R-HSA-3640862
title: Tankyrase binds AXIN
findings: []
- id: Reactome:R-HSA-3640872
title: USP34 deubiquitinates AXIN1,AXIN2
findings: []
- id: Reactome:R-HSA-3640874
title: Ub-RibC-AXIN is degraded by the proteasome
findings: []
- id: Reactome:R-HSA-4641257
title: Degradation of AXIN
findings: []
- id: Reactome:R-HSA-5262606
title: XAV939 binds tankyrase to stabilize axin and inhibit WNT signaling
findings: []
- id: Reactome:R-HSA-8948800
title: TNKS and TNKS2 PARylate PTEN
findings: []
- id: file:human/TNKS/TNKS-deep-research-falcon.md
title: Falcon deep research synthesis for TNKS
findings: []
core_functions:
- description: NAD+-dependent protein poly-ADP-ribosyltransferase activity that PARylates TNKS
itself and substrate proteins such as AXIN, enabling PAR-dependent ubiquitination and pathway
regulation.
molecular_function:
id: GO:0003950
label: NAD+ poly-ADP-ribosyltransferase activity
directly_involved_in:
- id: GO:0070212
label: protein poly-ADP-ribosylation
- id: GO:0070213
label: protein auto-ADP-ribosylation
- id: GO:0090263
label: positive regulation of canonical Wnt signaling pathway
- id: GO:0070198
label: protein localization to chromosome, telomeric region
- id: GO:1904355
label: positive regulation of telomere capping
locations:
- id: GO:0005829
label: cytosol
- id: GO:0005737
label: cytoplasm
- id: GO:0005634
label: nucleus
- id: GO:0000781
label: chromosome, telomeric region
- id: GO:0097431
label: mitotic spindle pole
supported_by:
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Tankyrase-1 (TNKS1)** is an **ADP-ribosyltransferase** of the PARP/ARTD family
that **uses NAD+ as the substrate** to catalyze covalent transfer of ADP-ribose onto itself and
protein binding partners, generating **poly(ADP-ribose) (PAR)** chains (i.e., PARylation).'
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: Mechanistically, TNKS cleaves NAD+ and transfers ADP-ribose to substrate
acceptor sites; a structural/functional synthesis in the retrieved literature notes
**preference for acidic acceptor residues (Glu/Asp)** and describes canonical catalytic
features including an **HYE catalytic triad** and a catalytic acceptor-site architecture
containing a **CHCC-type zinc-binding motif** important for structural integrity of the
acceptor site.
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: Multiple retrieved sources state that **tankyrase PARylates AXIN (AXIN1/2)**,
which promotes **RNF146-mediated ubiquitination** and **proteasomal degradation** of AXIN.
Loss of AXIN destabilizes the destruction complex, thereby **stabilizing β-catenin** and
increasing pathway output. Conversely, **tankyrase inhibition stabilizes AXIN** and reduces
cytosolic β-catenin and β-catenin–dependent transcription.
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: '**Telomeres**: recruitment via the telomeric factor **TRF1** (consistent with roles
in telomere biology).'
- reference_id: file:human/TNKS/TNKS-deep-research-falcon.md
supporting_text: TNKS also targets proteins involved in mitosis. A structural/functional
analysis in the retrieved corpus reports that **TNKS PARylates NuMA**, and further states that
**TNKS1 (but not TNKS2)** is specifically required for NuMA PARylation and correct mitotic
spindle organization.
proposed_new_terms: []
suggested_questions: []
suggested_experiments: []