Tert

UniProt ID: O70372
Organism: Mus musculus
Review Status: COMPLETE
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Gene Description

Tert encodes telomerase reverse transcriptase, the catalytic protein subunit of the telomerase ribonucleoprotein. TERT uses the telomerase RNA template to synthesize telomeric TTAGGG repeats at chromosome ends, maintaining telomere length in proliferative and stem/progenitor contexts. Reported mitochondrial, transcriptional, Wnt, immune, or anti-apoptotic roles are treated as context-dependent non-canonical activities rather than the primary function.

Existing Annotations Review

GO Term Evidence Action Reason
GO:0003720 telomerase activity
IBA
GO_REF:0000033
ACCEPT
Summary: Defining catalytic activity of TERT: the RNA-dependent processive addition of TTAGGG telomeric repeats to 3' chromosome ends. mTert loss abolishes detectable telomerase activity in vivo. Core function.
Reason: Catalytic core MF; directly supported by mouse IDA/TAS and conserved IBA evidence.
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0007004 telomere maintenance via telomerase
IBA
GO_REF:0000033
ACCEPT
Summary: The canonical pathway in which TERT extends telomeres to counter the end-replication problem; mTert-null mice show progressive multigenerational telomere erosion and signal-free chromosome ends.
Reason: Core BP; mouse genetic evidence establishes telomerase-dependent maintenance.
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0070034 telomerase RNA binding
IBA
GO_REF:0000033
ACCEPT
Summary: TERT binds the Terc/TR template via RNA-interacting domains RD1 and RD2 (pseudoknot-template and CR4/5 regions), an essential determinant of template engagement and repeat-addition processivity.
Reason: Specific, informative MF central to holoenzyme assembly and catalysis; core.
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0000333 telomerase catalytic core complex
IBA
GO_REF:0000033
ACCEPT
Summary: TERT plus the Terc RNA constitute the catalytic core responsible for DNA extension. This minimal complex is the functional engine of telomerase.
Reason: Core CC; TERT is the protein component of the catalytic core (IMP/IBA).
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0042162 telomeric DNA binding
IBA
GO_REF:0000033
ACCEPT
Summary: TERT binds the single-stranded telomeric DNA primer/3' chromosome terminus, with anchor sites holding primer nucleotides upstream of the RNA-DNA hybrid to support processive repeat addition.
Reason: Specific DNA-binding MF for the telomeric primer substrate; core to catalysis.
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0000723 telomere maintenance
IEA
GO_REF:0000002
ACCEPT
Summary: Parent process capturing TERT's role in preserving telomere length and chromosome-end integrity. Retained as a faithful, if more general, statement of the core biological role.
Reason: Correct core BP; broader parent of telomere maintenance via telomerase.
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0000781 chromosome, telomeric region
IEA
GO_REF:0000120
ACCEPT
Summary: Site of catalysis: TERT engages the telomeric region of chromosomes to add TTAGGG repeats. UniProt lists Chromosome, telomere as a subcellular location.
Reason: Core CC; the telomere is where the catalytic reaction occurs.
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0003677 DNA binding
IEA
GO_REF:0000120
KEEP AS NON CORE
Summary: TERT binds telomeric ssDNA primer; the generic DNA-binding term is correct but less informative than telomeric DNA binding and is keyword/electronic-derived.
Reason: Correct but generic; specific telomeric DNA binding is the core term.
GO:0003720 telomerase activity
IEA
GO_REF:0000120
ACCEPT
Summary: Defining catalytic activity of TERT: the RNA-dependent processive addition of TTAGGG telomeric repeats to 3' chromosome ends. mTert loss abolishes detectable telomerase activity in vivo. Core function.
Reason: Catalytic core MF; directly supported by mouse IDA/TAS and conserved IBA evidence.
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0003964 RNA-directed DNA polymerase activity
IEA
GO_REF:0000120
ACCEPT
Summary: Reverse transcriptase activity (EC 2.7.7.49) by which TERT copies the Terc RNA template into telomeric DNA. The conserved RT domain (residues 595-928) with catalytic Mg2+-binding Asp residues underlies telomerase action.
Reason: Precise MF describing the reverse-transcriptase catalytic mechanism; core.
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0005634 nucleus
IEA
GO_REF:0000120
ACCEPT
Summary: Principal compartment where TERT acts; nuclear import/retention is regulated by AKT phosphorylation and SHP2/PTPN11 dephosphorylation, positioning telomerase for chromosome-end extension.
Reason: Core CC; nucleus is the canonical site of telomerase action.
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0005654 nucleoplasm
IEA
GO_REF:0000120
KEEP AS NON CORE
Summary: TERT shows diffuse nucleoplasmic distribution; a subnuclear pool that is part of nuclear residence but not the specific telomere/nucleolar site of function.
Reason: Nuclear subcompartment; non-core relative to telomere/nucleolus.
GO:0005730 nucleolus
IEA
GO_REF:0000120
ACCEPT
Summary: TERT is enriched in nucleoli of certain cell types; nucleolar localization (mediated via NCL interaction) is part of telomerase trafficking/biogenesis and is well documented for TERT.
Reason: Core/canonical TERT subnuclear localization (ISS/ISO), consistent with UniProt.
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0005737 cytoplasm
IEA
GO_REF:0000044
KEEP AS NON CORE
Summary: TERT shuttles to the cytoplasm under oxidative stress (CRM1/RAN-dependent, Tyr-697 phosphorylation), a regulated secondary localization rather than its catalytic site.
Reason: Regulated secondary localization (IDA/IEA); not core site of action.
GO:0008284 positive regulation of cell population proliferation
IEA
GO_REF:0000117
KEEP AS NON CORE
Summary: TERT supports proliferative capacity of progenitor/cancer cells; a broad downstream effect of enabling continued division, not the molecular core.
Reason: Broad pleiotropic proliferation BP (IEA).
GO:0016605 PML body
IEA
GO_REF:0000120
KEEP AS NON CORE
Summary: PML interaction recruits TERT to PML bodies and inhibits telomerase activity; a regulatory sequestration site rather than the active catalytic location.
Reason: Regulatory/inhibitory localization (IEA/ISO); non-core.
GO:0016740 transferase activity
IEA
GO_REF:0000043
MARK AS OVER ANNOTATED
Summary: Top-level EC 2 transferase parent; far too general to inform TERT function given the specific polymerase activities already annotated.
Reason: Root-level MF; uninformative.
GO:0016779 nucleotidyltransferase activity
IEA
GO_REF:0000043
MARK AS OVER ANNOTATED
Summary: High-level transferase parent; TERT's nucleotidyltransferase chemistry is already captured precisely by telomerase / RNA-directed DNA polymerase activity.
Reason: Over-general MF parent of the specific catalytic terms.
GO:0034061 DNA polymerase activity
IEA
GO_REF:0000116
MARK AS OVER ANNOTATED
Summary: Generic DNA polymerase term; TERT is specifically a template-directed RNA-dependent DNA polymerase, already captured by the more precise RNA-directed DNA polymerase / telomerase terms.
Reason: Over-general MF; the RNA-directed (RT) child is the correct specific term.
GO:0046872 metal ion binding
IEA
GO_REF:0000043
MARK AS OVER ANNOTATED
Summary: Keyword-derived term; TERT binds catalytic Mg2+ at the RT active site, but the bare metal-ion term is uninformative compared with the polymerase MF that already implies it.
Reason: Generic UniProtKB-KW-derived MF; subsumed by catalytic activity.
GO:1990904 ribonucleoprotein complex
IEA
GO_REF:0000043
KEEP AS NON CORE
Summary: Generic RNP parent; true because telomerase is an RNP, but uninformative relative to the specific telomerase holoenzyme/catalytic-core complex terms.
Reason: Over-general CC parent of the telomerase complex (IEA).
GO:0005515 protein binding
IPI
PMID:19571879
Telomerase modulates Wnt signalling by association with targ...
MARK AS OVER ANNOTATED
Summary: Bare 'protein binding' conveys no specific TERT function; its many partners (HSP90, TCAB1, SMARCA4, PIF1, etc.) are better captured by specific binding/complex terms.
Reason: Uninformative generic MF; specific partner terms preferred.
GO:0000049 tRNA binding
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: An electronically inferred tRNA-binding activity; plausible given TERT's RNA-binding fold but not part of the canonical Terc-templated mechanism.
Reason: Electronic non-core RNA-binding (IEA/ISO).
GO:0000333 telomerase catalytic core complex
IEA
GO_REF:0000107
ACCEPT
Summary: TERT plus the Terc RNA constitute the catalytic core responsible for DNA extension. This minimal complex is the functional engine of telomerase.
Reason: Core CC; TERT is the protein component of the catalytic core (IMP/IBA).
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0001172 RNA-templated transcription
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Process term associated with the non-canonical TERT-RMRP RdRP activity; not the canonical telomere-extension role.
Reason: Non-canonical process linked to RMRP RdRP; electronic.
GO:0001223 transcription coactivator binding
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Captures TERT's chromatin/transcription interactions (e.g., SMARCA4/BRG1 in Wnt target-gene regulation), part of its non-canonical transcriptional role.
Reason: Specific binding tied to non-canonical transcriptional role (IPI/IEA/ISO).
GO:0003723 RNA binding
IEA
GO_REF:0000107
MARK AS OVER ANNOTATED
Summary: Broad RNA-binding term; TERT's functionally relevant RNA interaction is with Terc, already captured by the specific telomerase RNA binding annotation.
Reason: Over-broad nucleic-acid binding; specific telomerase RNA binding present.
GO:0003968 RNA-directed RNA polymerase activity
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: A non-canonical RdRP activity has been proposed for TERT (with RMRP RNA, the TERT-RMRP complex), but this is contested and supported only by electronic transfer; not part of the canonical telomerase MF.
Reason: Contested non-canonical activity; electronic (IEA/ISO) only.
GO:0005697 telomerase holoenzyme complex
IEA
GO_REF:0000107
ACCEPT
Summary: TERT is the catalytic subunit of the holoenzyme, which also contains Terc, WRAP53/TCAB1 and the H/ACA proteins DKC1, NOP10, NHP2 and GAR1, plus associated TEP1/SMG6/POT1.
Reason: Core CC; UniProt SUBUNIT defines TERT as the holoenzyme catalytic component.
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0005739 mitochondrion
IEA
GO_REF:0000120
KEEP AS NON CORE
Summary: A mitochondrial TERT pool with non-canonical roles in ROS handling and mtDNA protection has been reported, but this moonlighting localization is context-dependent and distinct from telomere maintenance.
Reason: Contested non-canonical localization (IDA/IEA/ISO); keep non-core.
GO:0005829 cytosol
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Cytosolic pool consistent with stress-regulated nuclear export of TERT; secondary to nuclear/telomeric localization.
Reason: Secondary localization (IEA/ISO).
GO:0006278 RNA-templated DNA biosynthetic process
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Reverse-transcription process term; correct for TERT but a general restatement of its telomere-templated DNA synthesis already covered by core terms.
Reason: Accurate but redundant BP with core telomerase process.
GO:0006606 protein import into nucleus
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Reflects regulated nuclear import of TERT (AKT-driven; RAN/XPO1-dependent shuttling); a trafficking/regulatory process supporting, not equal to, the core function.
Reason: Regulatory trafficking BP (IEA/ISO).
GO:0007004 telomere maintenance via telomerase
IEA
GO_REF:0000107
ACCEPT
Summary: The canonical pathway in which TERT extends telomeres to counter the end-replication problem; mTert-null mice show progressive multigenerational telomere erosion and signal-free chromosome ends.
Reason: Core BP; mouse genetic evidence establishes telomerase-dependent maintenance.
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0007005 mitochondrion organization
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Linked to the contested non-canonical mitochondrial role of TERT (ROS/mtDNA biogenesis); a pleiotropic/moonlighting process, not core telomere biology.
Reason: Non-canonical mitochondrial process (IEA/ISO).
GO:0007507 heart development
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Developmental contribution of telomerase/TERT in cardiac tissue; a pleiotropic developmental role electronically inferred, not the molecular core.
Reason: Pleiotropic developmental BP (IEA).
GO:0016607 nuclear speck
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Reported nuclear-speck localization of TERT is a secondary subnuclear pool, electronically inferred; not the canonical site of telomere extension.
Reason: Secondary subnuclear localization (IEA/ISO).
GO:0022616 DNA strand elongation
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Describes the elongation step of telomeric DNA synthesis; accurate but a generic facet of the core telomere-extension process.
Reason: Generic BP facet of telomere extension (IEA/ISO).
GO:0030177 positive regulation of Wnt signaling pathway
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: TERT modulates Wnt/beta-catenin signaling by associating with SMARCA4 on target-gene chromatin (Park et al. 2009); a well-supported non-canonical role distinct from telomere extension.
Reason: Non-canonical signaling role (IGI/IEA/ISO); moonlighting, keep non-core.
GO:0030422 siRNA processing
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Reflects the proposed TERT-RMRP pathway generating RMRP-derived siRNAs; a contested non-canonical role rather than the core telomerase function.
Reason: Non-canonical RMRP-linked role (ISS/ComplexPortal).
GO:0031379 RNA-directed RNA polymerase complex
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Companion CC for the proposed TERT-RMRP RdRP activity; non-canonical and electronic, retained as a possible moonlighting context rather than the core telomerase complex.
Reason: Non-canonical complex tied to contested RdRP role (IEA/ISO).
GO:0031647 regulation of protein stability
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: TERT participates in protein-stability regulation (e.g., it is itself controlled by DYRK2/EDVP ubiquitination, and modulates partner stability such as CMIP); a regulatory facet, not core.
Reason: Pleiotropic regulatory BP (IEA/ISO).
GO:0042645 mitochondrial nucleoid
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Association of TERT with mitochondrial nucleoids relates to proposed mtDNA-protective non-canonical roles; electronic and context-dependent, not the canonical function.
Reason: Non-canonical mitochondrial localization (IEA/ISO).
GO:0042802 identical protein binding
IEA
GO_REF:0000107
MARK AS OVER ANNOTATED
Summary: Generic self-binding term; TERT can oligomerize but this adds little functional content over the more specific homodimerization terms and is electronic only.
Reason: Uninformative generic MF (IEA/ISO).
GO:0042803 protein homodimerization activity
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: TERT can oligomerize via dedicated oligomerization regions; homodimerization is a structural property relevant to assembly but not the catalytic core function.
Reason: Specific but ancillary structural MF (IEA/ISO).
GO:0043066 negative regulation of apoptotic process
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: TERT has antiapoptotic/pro-survival activity (UniProt: roles in antiapoptosis), a pleiotropic protective effect downstream of or parallel to telomere maintenance.
Reason: Pleiotropic pro-survival BP (IEA/ISO).
GO:0043524 negative regulation of neuron apoptotic process
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Neuron-specific instance of TERT's antiapoptotic activity, relevant to neuroprotection literature; a downstream tissue-specific effect.
Reason: Tissue-specific antiapoptotic BP (IEA/ISO).
GO:0045766 positive regulation of angiogenesis
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: TERT supports angiogenesis (linked to endothelial survival/VEGF); a downstream vascular role rather than the core telomerase function.
Reason: Pleiotropic vascular BP (IEA/ISO).
GO:0046686 response to cadmium ion
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Electronically inferred stress response to cadmium; a non-specific response-to-stimulus annotation peripheral to TERT's core role.
Reason: Generic stress-response BP (IEA).
GO:0051087 protein-folding chaperone binding
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: TERT binds the HSP90/p23 (PTGES3) chaperone machinery required for correct assembly and stabilization of active telomerase; an assembly-support interaction.
Reason: Specific biogenesis-related binding (IEA/ISO); non-core MF.
GO:0070034 telomerase RNA binding
IEA
GO_REF:0000107
ACCEPT
Summary: TERT binds the Terc/TR template via RNA-interacting domains RD1 and RD2 (pseudoknot-template and CR4/5 regions), an essential determinant of template engagement and repeat-addition processivity.
Reason: Specific, informative MF central to holoenzyme assembly and catalysis; core.
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0070200 establishment of protein localization to telomere
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Recruitment of telomerase/TERT to telomeres (via shelterin-linked TPP1/TIN2/POT1b factors); a localization step upstream of catalysis, retained as supporting non-core.
Reason: Recruitment/localization BP (IEA/ISO); supports core but distinct.
GO:0071456 cellular response to hypoxia
IEA
GO_REF:0000120
KEEP AS NON CORE
Summary: TERT participates in hypoxic stress responses (mitochondrial/ROS and survival programs); a stress-response role secondary to its catalytic function.
Reason: Stress-response BP (IEA/ISO).
GO:0071897 DNA biosynthetic process
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: TERT synthesizes telomeric DNA, so this parent process is true but generic relative to telomere maintenance via telomerase.
Reason: Correct but over-general BP; electronic propagation.
GO:0090399 replicative senescence
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: TERT activity counteracts replicative senescence by sustaining telomere length; a phenotype-level process downstream of the catalytic role.
Reason: Downstream/phenotypic BP (IEA/ISO).
GO:0098680 template-free RNA nucleotidyltransferase activity
IEA
GO_REF:0000107
REMOVE
Summary: Template-free RNA nucleotidyltransferase activity is not a function of TERT, whose defining chemistry is template-directed DNA synthesis from the Terc RNA; this electronic annotation contradicts the established mechanism.
Reason: Electronic (IEA/ISO) and biologically contradicted; TERT is template-dependent.
GO:0140745 siRNA transcription
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Transcription of siRNA from the RMRP template via the proposed TERT RdRP activity; non-canonical and electronically inferred.
Reason: Non-canonical RMRP-linked role (IEA/ISO).
GO:1900087 positive regulation of G1/S transition of mitotic cell cycle
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Cell-cycle-promoting effect linked to TERT's pro-proliferative/non-canonical signaling; pleiotropic and electronically inferred.
Reason: Pleiotropic cell-cycle BP (IEA/ISO).
GO:1902895 positive regulation of miRNA transcription
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Reflects TERT's non-canonical influence on miRNA-gene transcription via chromatin association; part of its moonlighting transcriptional activity.
Reason: Non-canonical transcriptional BP (IEA/ISO).
GO:1903620 positive regulation of transdifferentiation
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Non-canonical role of TERT in promoting cellular transdifferentiation; context-dependent and electronically inferred.
Reason: Non-canonical developmental BP (IEA/ISO).
GO:1904707 positive regulation of vascular associated smooth muscle cell proliferation
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: TERT promotes proliferation of vascular smooth muscle cells; a tissue-specific downstream proliferative effect.
Reason: Tissue-specific proliferation BP (IEA/ISO).
GO:1904751 positive regulation of protein localization to nucleolus
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Linked to TERT's nucleolar trafficking interactions; a regulatory localization process, electronically inferred and ancillary.
Reason: Regulatory localization BP (IEA/ISO).
GO:1904754 positive regulation of vascular associated smooth muscle cell migration
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: TERT promotes vascular smooth muscle cell migration; part of its pleiotropic vascular-remodeling effects, electronically inferred.
Reason: Tissue-specific migration BP (IEA/ISO).
GO:1990572 TERT-RMRP complex
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: TERT can associate with the RMRP RNA in a distinct complex linked to the proposed RdRP/siRNA activity; a non-canonical context separate from telomere maintenance.
Reason: Non-canonical TERT-RMRP complex (ISS/ComplexPortal, IEA).
GO:2000352 negative regulation of endothelial cell apoptotic process
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Endothelial antiapoptotic effect of TERT linked to vascular/angiogenesis biology; a pleiotropic downstream role.
Reason: Tissue-specific antiapoptotic BP (IEA/ISO).
GO:2000773 negative regulation of cellular senescence
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: By maintaining telomeres, TERT delays senescence; this is a downstream physiological consequence rather than the molecular core function.
Reason: Downstream consequence of telomere maintenance (IEA/ISO).
GO:2001240 negative regulation of extrinsic apoptotic signaling pathway in absence of ligand
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Specific antiapoptotic pathway facet of TERT's pro-survival activity; pleiotropic and electronically inferred.
Reason: Pleiotropic antiapoptotic BP (IEA/ISO).
GO:0000049 tRNA binding
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: An electronically inferred tRNA-binding activity; plausible given TERT's RNA-binding fold but not part of the canonical Terc-templated mechanism.
Reason: Electronic non-core RNA-binding (IEA/ISO).
GO:0000333 telomerase catalytic core complex
ISO
GO_REF:0000119
ACCEPT
Summary: TERT plus the Terc RNA constitute the catalytic core responsible for DNA extension. This minimal complex is the functional engine of telomerase.
Reason: Core CC; TERT is the protein component of the catalytic core (IMP/IBA).
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0000781 chromosome, telomeric region
ISO
GO_REF:0000119
ACCEPT
Summary: Site of catalysis: TERT engages the telomeric region of chromosomes to add TTAGGG repeats. UniProt lists Chromosome, telomere as a subcellular location.
Reason: Core CC; the telomere is where the catalytic reaction occurs.
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0001172 RNA-templated transcription
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: Process term associated with the non-canonical TERT-RMRP RdRP activity; not the canonical telomere-extension role.
Reason: Non-canonical process linked to RMRP RdRP; electronic.
GO:0001223 transcription coactivator binding
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: Captures TERT's chromatin/transcription interactions (e.g., SMARCA4/BRG1 in Wnt target-gene regulation), part of its non-canonical transcriptional role.
Reason: Specific binding tied to non-canonical transcriptional role (IPI/IEA/ISO).
GO:0003677 DNA binding
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: TERT binds telomeric ssDNA primer; the generic DNA-binding term is correct but less informative than telomeric DNA binding and is keyword/electronic-derived.
Reason: Correct but generic; specific telomeric DNA binding is the core term.
GO:0003720 telomerase activity
ISO
GO_REF:0000096
ACCEPT
Summary: Defining catalytic activity of TERT: the RNA-dependent processive addition of TTAGGG telomeric repeats to 3' chromosome ends. mTert loss abolishes detectable telomerase activity in vivo. Core function.
Reason: Catalytic core MF; directly supported by mouse IDA/TAS and conserved IBA evidence.
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0003720 telomerase activity
ISO
GO_REF:0000119
ACCEPT
Summary: Defining catalytic activity of TERT: the RNA-dependent processive addition of TTAGGG telomeric repeats to 3' chromosome ends. mTert loss abolishes detectable telomerase activity in vivo. Core function.
Reason: Catalytic core MF; directly supported by mouse IDA/TAS and conserved IBA evidence.
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0003723 RNA binding
ISO
GO_REF:0000119
MARK AS OVER ANNOTATED
Summary: Broad RNA-binding term; TERT's functionally relevant RNA interaction is with Terc, already captured by the specific telomerase RNA binding annotation.
Reason: Over-broad nucleic-acid binding; specific telomerase RNA binding present.
GO:0003964 RNA-directed DNA polymerase activity
ISO
GO_REF:0000119
ACCEPT
Summary: Reverse transcriptase activity (EC 2.7.7.49) by which TERT copies the Terc RNA template into telomeric DNA. The conserved RT domain (residues 595-928) with catalytic Mg2+-binding Asp residues underlies telomerase action.
Reason: Precise MF describing the reverse-transcriptase catalytic mechanism; core.
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0003968 RNA-directed RNA polymerase activity
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: A non-canonical RdRP activity has been proposed for TERT (with RMRP RNA, the TERT-RMRP complex), but this is contested and supported only by electronic transfer; not part of the canonical telomerase MF.
Reason: Contested non-canonical activity; electronic (IEA/ISO) only.
GO:0005634 nucleus
ISO
GO_REF:0000119
ACCEPT
Summary: Principal compartment where TERT acts; nuclear import/retention is regulated by AKT phosphorylation and SHP2/PTPN11 dephosphorylation, positioning telomerase for chromosome-end extension.
Reason: Core CC; nucleus is the canonical site of telomerase action.
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0005654 nucleoplasm
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: TERT shows diffuse nucleoplasmic distribution; a subnuclear pool that is part of nuclear residence but not the specific telomere/nucleolar site of function.
Reason: Nuclear subcompartment; non-core relative to telomere/nucleolus.
GO:0005697 telomerase holoenzyme complex
ISO
GO_REF:0000119
ACCEPT
Summary: TERT is the catalytic subunit of the holoenzyme, which also contains Terc, WRAP53/TCAB1 and the H/ACA proteins DKC1, NOP10, NHP2 and GAR1, plus associated TEP1/SMG6/POT1.
Reason: Core CC; UniProt SUBUNIT defines TERT as the holoenzyme catalytic component.
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0005730 nucleolus
ISO
GO_REF:0000119
ACCEPT
Summary: TERT is enriched in nucleoli of certain cell types; nucleolar localization (mediated via NCL interaction) is part of telomerase trafficking/biogenesis and is well documented for TERT.
Reason: Core/canonical TERT subnuclear localization (ISS/ISO), consistent with UniProt.
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0005739 mitochondrion
ISO
GO_REF:0000096
KEEP AS NON CORE
Summary: A mitochondrial TERT pool with non-canonical roles in ROS handling and mtDNA protection has been reported, but this moonlighting localization is context-dependent and distinct from telomere maintenance.
Reason: Contested non-canonical localization (IDA/IEA/ISO); keep non-core.
GO:0005829 cytosol
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: Cytosolic pool consistent with stress-regulated nuclear export of TERT; secondary to nuclear/telomeric localization.
Reason: Secondary localization (IEA/ISO).
GO:0006278 RNA-templated DNA biosynthetic process
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: Reverse-transcription process term; correct for TERT but a general restatement of its telomere-templated DNA synthesis already covered by core terms.
Reason: Accurate but redundant BP with core telomerase process.
GO:0006606 protein import into nucleus
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: Reflects regulated nuclear import of TERT (AKT-driven; RAN/XPO1-dependent shuttling); a trafficking/regulatory process supporting, not equal to, the core function.
Reason: Regulatory trafficking BP (IEA/ISO).
GO:0007004 telomere maintenance via telomerase
ISO
GO_REF:0000119
ACCEPT
Summary: The canonical pathway in which TERT extends telomeres to counter the end-replication problem; mTert-null mice show progressive multigenerational telomere erosion and signal-free chromosome ends.
Reason: Core BP; mouse genetic evidence establishes telomerase-dependent maintenance.
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0007005 mitochondrion organization
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: Linked to the contested non-canonical mitochondrial role of TERT (ROS/mtDNA biogenesis); a pleiotropic/moonlighting process, not core telomere biology.
Reason: Non-canonical mitochondrial process (IEA/ISO).
GO:0016605 PML body
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: PML interaction recruits TERT to PML bodies and inhibits telomerase activity; a regulatory sequestration site rather than the active catalytic location.
Reason: Regulatory/inhibitory localization (IEA/ISO); non-core.
GO:0016607 nuclear speck
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: Reported nuclear-speck localization of TERT is a secondary subnuclear pool, electronically inferred; not the canonical site of telomere extension.
Reason: Secondary subnuclear localization (IEA/ISO).
GO:0022616 DNA strand elongation
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: Describes the elongation step of telomeric DNA synthesis; accurate but a generic facet of the core telomere-extension process.
Reason: Generic BP facet of telomere extension (IEA/ISO).
GO:0030177 positive regulation of Wnt signaling pathway
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: TERT modulates Wnt/beta-catenin signaling by associating with SMARCA4 on target-gene chromatin (Park et al. 2009); a well-supported non-canonical role distinct from telomere extension.
Reason: Non-canonical signaling role (IGI/IEA/ISO); moonlighting, keep non-core.
GO:0030422 siRNA processing
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: Reflects the proposed TERT-RMRP pathway generating RMRP-derived siRNAs; a contested non-canonical role rather than the core telomerase function.
Reason: Non-canonical RMRP-linked role (ISS/ComplexPortal).
GO:0031379 RNA-directed RNA polymerase complex
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: Companion CC for the proposed TERT-RMRP RdRP activity; non-canonical and electronic, retained as a possible moonlighting context rather than the core telomerase complex.
Reason: Non-canonical complex tied to contested RdRP role (IEA/ISO).
GO:0031647 regulation of protein stability
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: TERT participates in protein-stability regulation (e.g., it is itself controlled by DYRK2/EDVP ubiquitination, and modulates partner stability such as CMIP); a regulatory facet, not core.
Reason: Pleiotropic regulatory BP (IEA/ISO).
GO:0042645 mitochondrial nucleoid
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: Association of TERT with mitochondrial nucleoids relates to proposed mtDNA-protective non-canonical roles; electronic and context-dependent, not the canonical function.
Reason: Non-canonical mitochondrial localization (IEA/ISO).
GO:0042802 identical protein binding
ISO
GO_REF:0000119
MARK AS OVER ANNOTATED
Summary: Generic self-binding term; TERT can oligomerize but this adds little functional content over the more specific homodimerization terms and is electronic only.
Reason: Uninformative generic MF (IEA/ISO).
GO:0042803 protein homodimerization activity
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: TERT can oligomerize via dedicated oligomerization regions; homodimerization is a structural property relevant to assembly but not the catalytic core function.
Reason: Specific but ancillary structural MF (IEA/ISO).
GO:0043066 negative regulation of apoptotic process
ISO
GO_REF:0000096
KEEP AS NON CORE
Summary: TERT has antiapoptotic/pro-survival activity (UniProt: roles in antiapoptosis), a pleiotropic protective effect downstream of or parallel to telomere maintenance.
Reason: Pleiotropic pro-survival BP (IEA/ISO).
GO:0043524 negative regulation of neuron apoptotic process
ISO
GO_REF:0000096
KEEP AS NON CORE
Summary: Neuron-specific instance of TERT's antiapoptotic activity, relevant to neuroprotection literature; a downstream tissue-specific effect.
Reason: Tissue-specific antiapoptotic BP (IEA/ISO).
GO:0045766 positive regulation of angiogenesis
ISO
GO_REF:0000096
KEEP AS NON CORE
Summary: TERT supports angiogenesis (linked to endothelial survival/VEGF); a downstream vascular role rather than the core telomerase function.
Reason: Pleiotropic vascular BP (IEA/ISO).
GO:0051087 protein-folding chaperone binding
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: TERT binds the HSP90/p23 (PTGES3) chaperone machinery required for correct assembly and stabilization of active telomerase; an assembly-support interaction.
Reason: Specific biogenesis-related binding (IEA/ISO); non-core MF.
GO:0060253 negative regulation of glial cell proliferation
ISO
GO_REF:0000096
KEEP AS NON CORE
Summary: Tissue-specific proliferation-regulatory effect attributed to TERT; pleiotropic and supported only by orthology transfer.
Reason: Pleiotropic tissue-specific BP (ISO).
GO:0070034 telomerase RNA binding
ISO
GO_REF:0000119
ACCEPT
Summary: TERT binds the Terc/TR template via RNA-interacting domains RD1 and RD2 (pseudoknot-template and CR4/5 regions), an essential determinant of template engagement and repeat-addition processivity.
Reason: Specific, informative MF central to holoenzyme assembly and catalysis; core.
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0070200 establishment of protein localization to telomere
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: Recruitment of telomerase/TERT to telomeres (via shelterin-linked TPP1/TIN2/POT1b factors); a localization step upstream of catalysis, retained as supporting non-core.
Reason: Recruitment/localization BP (IEA/ISO); supports core but distinct.
GO:0071456 cellular response to hypoxia
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: TERT participates in hypoxic stress responses (mitochondrial/ROS and survival programs); a stress-response role secondary to its catalytic function.
Reason: Stress-response BP (IEA/ISO).
GO:0071897 DNA biosynthetic process
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: TERT synthesizes telomeric DNA, so this parent process is true but generic relative to telomere maintenance via telomerase.
Reason: Correct but over-general BP; electronic propagation.
GO:0090399 replicative senescence
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: TERT activity counteracts replicative senescence by sustaining telomere length; a phenotype-level process downstream of the catalytic role.
Reason: Downstream/phenotypic BP (IEA/ISO).
GO:0098680 template-free RNA nucleotidyltransferase activity
ISO
GO_REF:0000119
REMOVE
Summary: Template-free RNA nucleotidyltransferase activity is not a function of TERT, whose defining chemistry is template-directed DNA synthesis from the Terc RNA; this electronic annotation contradicts the established mechanism.
Reason: Electronic (IEA/ISO) and biologically contradicted; TERT is template-dependent.
GO:0140745 siRNA transcription
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: Transcription of siRNA from the RMRP template via the proposed TERT RdRP activity; non-canonical and electronically inferred.
Reason: Non-canonical RMRP-linked role (IEA/ISO).
GO:1900087 positive regulation of G1/S transition of mitotic cell cycle
ISO
GO_REF:0000096
KEEP AS NON CORE
Summary: Cell-cycle-promoting effect linked to TERT's pro-proliferative/non-canonical signaling; pleiotropic and electronically inferred.
Reason: Pleiotropic cell-cycle BP (IEA/ISO).
GO:1902895 positive regulation of miRNA transcription
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: Reflects TERT's non-canonical influence on miRNA-gene transcription via chromatin association; part of its moonlighting transcriptional activity.
Reason: Non-canonical transcriptional BP (IEA/ISO).
GO:1903620 positive regulation of transdifferentiation
ISO
GO_REF:0000096
KEEP AS NON CORE
Summary: Non-canonical role of TERT in promoting cellular transdifferentiation; context-dependent and electronically inferred.
Reason: Non-canonical developmental BP (IEA/ISO).
GO:1904707 positive regulation of vascular associated smooth muscle cell proliferation
ISO
GO_REF:0000096
KEEP AS NON CORE
Summary: TERT promotes proliferation of vascular smooth muscle cells; a tissue-specific downstream proliferative effect.
Reason: Tissue-specific proliferation BP (IEA/ISO).
GO:1904751 positive regulation of protein localization to nucleolus
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: Linked to TERT's nucleolar trafficking interactions; a regulatory localization process, electronically inferred and ancillary.
Reason: Regulatory localization BP (IEA/ISO).
GO:1904754 positive regulation of vascular associated smooth muscle cell migration
ISO
GO_REF:0000096
KEEP AS NON CORE
Summary: TERT promotes vascular smooth muscle cell migration; part of its pleiotropic vascular-remodeling effects, electronically inferred.
Reason: Tissue-specific migration BP (IEA/ISO).
GO:1990572 TERT-RMRP complex
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: TERT can associate with the RMRP RNA in a distinct complex linked to the proposed RdRP/siRNA activity; a non-canonical context separate from telomere maintenance.
Reason: Non-canonical TERT-RMRP complex (ISS/ComplexPortal, IEA).
GO:2000352 negative regulation of endothelial cell apoptotic process
ISO
GO_REF:0000096
KEEP AS NON CORE
Summary: Endothelial antiapoptotic effect of TERT linked to vascular/angiogenesis biology; a pleiotropic downstream role.
Reason: Tissue-specific antiapoptotic BP (IEA/ISO).
GO:2000773 negative regulation of cellular senescence
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: By maintaining telomeres, TERT delays senescence; this is a downstream physiological consequence rather than the molecular core function.
Reason: Downstream consequence of telomere maintenance (IEA/ISO).
GO:2001240 negative regulation of extrinsic apoptotic signaling pathway in absence of ligand
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: Specific antiapoptotic pathway facet of TERT's pro-survival activity; pleiotropic and electronically inferred.
Reason: Pleiotropic antiapoptotic BP (IEA/ISO).
GO:0000722 telomere maintenance via recombination
NAS
PMID:20351177
Specificity and stoichiometry of subunit interactions in the...
UNDECIDED
Summary: ALT (recombination-based) telomere maintenance is telomerase-INDEPENDENT and is not TERT's mechanism; TERT acts via telomerase. The NAS annotation appears misattributed, but as non-electronic evidence it is flagged not removed.
Reason: ALT is telomerase-independent; NAS evidence (not IEA/ISO), so flag not REMOVE.
GO:0007004 telomere maintenance via telomerase
NAS
PMID:20351177
Specificity and stoichiometry of subunit interactions in the...
ACCEPT
Summary: The canonical pathway in which TERT extends telomeres to counter the end-replication problem; mTert-null mice show progressive multigenerational telomere erosion and signal-free chromosome ends.
Reason: Core BP; mouse genetic evidence establishes telomerase-dependent maintenance.
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0005697 telomerase holoenzyme complex
ISS
GO_REF:0000024
ACCEPT
Summary: TERT is the catalytic subunit of the holoenzyme, which also contains Terc, WRAP53/TCAB1 and the H/ACA proteins DKC1, NOP10, NHP2 and GAR1, plus associated TEP1/SMG6/POT1.
Reason: Core CC; UniProt SUBUNIT defines TERT as the holoenzyme catalytic component.
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0007004 telomere maintenance via telomerase
ISS
GO_REF:0000024
ACCEPT
Summary: The canonical pathway in which TERT extends telomeres to counter the end-replication problem; mTert-null mice show progressive multigenerational telomere erosion and signal-free chromosome ends.
Reason: Core BP; mouse genetic evidence establishes telomerase-dependent maintenance.
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0003723 RNA binding
IPI
PMID:16507993
Regulation of cellular immortalization and steady-state leve...
MARK AS OVER ANNOTATED
Summary: Broad RNA-binding term; TERT's functionally relevant RNA interaction is with Terc, already captured by the specific telomerase RNA binding annotation.
Reason: Over-broad nucleic-acid binding; specific telomerase RNA binding present.
GO:0003720 telomerase activity
TAS
PMID:16107853
Conditional telomerase induction causes proliferation of hai...
ACCEPT
Summary: Defining catalytic activity of TERT: the RNA-dependent processive addition of TTAGGG telomeric repeats to 3' chromosome ends. mTert loss abolishes detectable telomerase activity in vivo. Core function.
Reason: Catalytic core MF; directly supported by mouse IDA/TAS and conserved IBA evidence.
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0007004 telomere maintenance via telomerase
TAS
PMID:16107853
Conditional telomerase induction causes proliferation of hai...
ACCEPT
Summary: The canonical pathway in which TERT extends telomeres to counter the end-replication problem; mTert-null mice show progressive multigenerational telomere erosion and signal-free chromosome ends.
Reason: Core BP; mouse genetic evidence establishes telomerase-dependent maintenance.
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0005515 protein binding
IPI
PMID:24970747
Extra-nuclear telomerase reverse transcriptase (TERT) regula...
MARK AS OVER ANNOTATED
Summary: Bare 'protein binding' conveys no specific TERT function; its many partners (HSP90, TCAB1, SMARCA4, PIF1, etc.) are better captured by specific binding/complex terms.
Reason: Uninformative generic MF; specific partner terms preferred.
GO:0005737 cytoplasm
IDA
PMID:24970747
Extra-nuclear telomerase reverse transcriptase (TERT) regula...
KEEP AS NON CORE
Summary: TERT shuttles to the cytoplasm under oxidative stress (CRM1/RAN-dependent, Tyr-697 phosphorylation), a regulated secondary localization rather than its catalytic site.
Reason: Regulated secondary localization (IDA/IEA); not core site of action.
GO:0005886 plasma membrane
IDA
PMID:24970747
Extra-nuclear telomerase reverse transcriptase (TERT) regula...
KEEP AS NON CORE
Summary: An IDA plasma-membrane localization is reported but is a minor/atypical pool far from TERT's nuclear telomere-extension role; retained without endorsing it as core.
Reason: Atypical secondary localization (IDA); experimental, so downgraded not removed.
GO:0046326 positive regulation of D-glucose import across plasma membrane
IMP
PMID:24970747
Extra-nuclear telomerase reverse transcriptase (TERT) regula...
KEEP AS NON CORE
Summary: An IMP-supported metabolic effect of TERT on glucose uptake; a non-canonical metabolic role distinct from telomere maintenance.
Reason: Non-canonical metabolic BP (IMP); experimental, downgrade not remove.
GO:0070034 telomerase RNA binding
IPI
PMID:16507993
Regulation of cellular immortalization and steady-state leve...
ACCEPT
Summary: TERT binds the Terc/TR template via RNA-interacting domains RD1 and RD2 (pseudoknot-template and CR4/5 regions), an essential determinant of template engagement and repeat-addition processivity.
Reason: Specific, informative MF central to holoenzyme assembly and catalysis; core.
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0030177 positive regulation of Wnt signaling pathway
IGI
PMID:19571879
Telomerase modulates Wnt signalling by association with targ...
KEEP AS NON CORE
Summary: TERT modulates Wnt/beta-catenin signaling by associating with SMARCA4 on target-gene chromatin (Park et al. 2009); a well-supported non-canonical role distinct from telomere extension.
Reason: Non-canonical signaling role (IGI/IEA/ISO); moonlighting, keep non-core.
GO:2000648 positive regulation of stem cell proliferation
IMP
PMID:16107853
Conditional telomerase induction causes proliferation of hai...
KEEP AS NON CORE
Summary: TERT promotes proliferation of stem/progenitor cells (IMP), consistent with its expression in progenitor compartments; an important but downstream physiological role.
Reason: Stem-cell physiology BP (IMP); experimental, downgrade to non-core.
GO:0005515 protein binding
IPI
PMID:17130244
Murine Pif1 interacts with telomerase and is dispensable for...
MARK AS OVER ANNOTATED
Summary: Bare 'protein binding' conveys no specific TERT function; its many partners (HSP90, TCAB1, SMARCA4, PIF1, etc.) are better captured by specific binding/complex terms.
Reason: Uninformative generic MF; specific partner terms preferred.
GO:0005730 nucleolus
ISS
GO_REF:0000024
ACCEPT
Summary: TERT is enriched in nucleoli of certain cell types; nucleolar localization (mediated via NCL interaction) is part of telomerase trafficking/biogenesis and is well documented for TERT.
Reason: Core/canonical TERT subnuclear localization (ISS/ISO), consistent with UniProt.
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0000333 telomerase catalytic core complex
IMP
PMID:16037417
Effects of telomerase and telomere length on epidermal stem ...
ACCEPT
Summary: TERT plus the Terc RNA constitute the catalytic core responsible for DNA extension. This minimal complex is the functional engine of telomerase.
Reason: Core CC; TERT is the protein component of the catalytic core (IMP/IBA).
Supporting Evidence:
UniProt:O70372
Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
file:mouse/Tert/Tert-deep-research-falcon.md
Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.
GO:0042635 positive regulation of hair cycle
IMP
PMID:16107853
Conditional telomerase induction causes proliferation of hai...
KEEP AS NON CORE
Summary: TERT promotes hair-follicle stem cell activation and anagen entry (IMP, a catalysis-independent function shown in mouse skin); a notable tissue-specific moonlighting role.
Reason: Tissue-specific stem-cell BP (IMP); experimental, keep as non-core.
GO:0005739 mitochondrion
IDA
PMID:21937513
Human telomerase acts as a hTR-independent reverse transcrip...
KEEP AS NON CORE
Summary: A mitochondrial TERT pool with non-canonical roles in ROS handling and mtDNA protection has been reported, but this moonlighting localization is context-dependent and distinct from telomere maintenance.
Reason: Contested non-canonical localization (IDA/IEA/ISO); keep non-core.
GO:0042635 positive regulation of hair cycle
IMP
PMID:16037417
Effects of telomerase and telomere length on epidermal stem ...
KEEP AS NON CORE
Summary: TERT promotes hair-follicle stem cell activation and anagen entry (IMP, a catalysis-independent function shown in mouse skin); a notable tissue-specific moonlighting role.
Reason: Tissue-specific stem-cell BP (IMP); experimental, keep as non-core.
GO:2000648 positive regulation of stem cell proliferation
IMP
PMID:16037417
Effects of telomerase and telomere length on epidermal stem ...
KEEP AS NON CORE
Summary: TERT promotes proliferation of stem/progenitor cells (IMP), consistent with its expression in progenitor compartments; an important but downstream physiological role.
Reason: Stem-cell physiology BP (IMP); experimental, downgrade to non-core.
GO:0001223 transcription coactivator binding
IPI
PMID:19571879
Telomerase modulates Wnt signalling by association with targ...
KEEP AS NON CORE
Summary: Captures TERT's chromatin/transcription interactions (e.g., SMARCA4/BRG1 in Wnt target-gene regulation), part of its non-canonical transcriptional role.
Reason: Specific binding tied to non-canonical transcriptional role (IPI/IEA/ISO).
GO:0003720 telomerase activity
IDA
PMID:14701760
Genomic instability and enhanced radiosensitivity in Hsp70.1...
ACCEPT
Summary: Defining catalytic activity of TERT: the RNA-dependent processive addition of TTAGGG telomeric repeats to 3' chromosome ends. mTert loss abolishes detectable telomerase activity in vivo. Core function.
Reason: Catalytic core MF; directly supported by mouse IDA/TAS and conserved IBA evidence.

Core Functions

Catalyzes telomerase RNA-templated addition of TTAGGG telomeric repeats to chromosome ends as the catalytic protein subunit of telomerase.

Supporting Evidence:
  • UniProt:O70372
    Catalytic component of the teleromerase holoenzyme complex whose main activity is the elongation of telomeres by acting as a reverse transcriptase that adds simple sequence repeats to chromosome ends by copying a template sequence within the RNA component of the enzyme.
  • file:mouse/Tert/Tert-deep-research-falcon.md
    Mouse **Tert (UniProt O70372)** encodes the **telomerase reverse transcriptase**, whose primary function is to **extend telomeric (TTAGGG)n repeats** at chromosome ends as the catalytic core of the telomerase RNP.

References

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Deep Research

Falcon

(Tert-deep-research-falcon.md)

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πŸ“„ View Raw YAML

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