Dll1

UniProt ID: Q61483
Organism: Mus musculus
Review Status: COMPLETE
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Gene Description

Dll1 (Delta-like 1) is a type I transmembrane DSL-family ligand of Notch receptors, with an N-terminal MNNL domain, a DSL domain and eight EGF-like repeats in its ectodomain and a cytoplasmic tail ending in a PDZ-binding motif. Presented at the plasma membrane of signal-sending cells, Dll1 binds Notch1 and Notch2 in trans on neighbouring cells; its ubiquitination by the E3 ligases Mind bomb 1 and Neuralized drives ligand endocytosis and recycling and generates the pulling force that exposes Notch to S2 cleavage, thereby activating canonical Notch-RBP-J signalling. Fringe glycosylation of Notch enhances Dll1 binding. Dll1 itself undergoes ADAM10 shedding and gamma-secretase cleavage, and is recruited to adherens junctions by the PDZ scaffold MAGI1. As the principal activating Delta ligand in many mouse tissues, Dll1 mediates lateral inhibition in neurogenesis, inner-ear hair cell patterning and intestinal secretory lineage selection, and is required for somitogenesis and somite polarity, left-right asymmetry, arterial endothelial identity, marginal zone B cell development and adult neural and muscle stem cell maintenance.

Existing Annotations Review

GO Term Evidence Action Reason
GO:0001701 in utero embryonic development
NAS
PMID:10473134
Expression of the mouse Delta1 gene during organogenesis and...
KEEP AS NON CORE
Summary: NAS from expression studies of Dll1 during organogenesis and in the inner ear.
Reason: Broadly consistent with functional data (Dll1 null embryos die mid-gestation; conditional loss affects neurogenesis and hair cell patterning), but these are pleiotropic consequences of Notch activation rather than distinct Dll1 functions.
GO:0001756 somitogenesis
IGI
PMID:15902259
The Mesp2 transcription factor establishes segmental borders...
KEEP AS NON CORE
Summary: Dll1 is required for somite formation, segmentation clock synchrony and somite polarity.
Reason: Well-supported in vivo requirement as the PSM Notch ligand, but a tissue-specific outcome of its ligand function.
Supporting Evidence:
PMID:12001066
distinct segmentation defects are displayed in embryos mutant for the Notch pathway genes Notch1, Lunatic fringe (Lfng), Delta-like 1 (Dll1), and Delta-like 3 (Dll3).
GO:0001756 somitogenesis
IMP
PMID:23072809
Lfng regulates the synchronized oscillation of the mouse seg...
KEEP AS NON CORE
Summary: Dll1 is required for somite formation, segmentation clock synchrony and somite polarity.
Reason: Well-supported in vivo requirement as the PSM Notch ligand, but a tissue-specific outcome of its ligand function.
Supporting Evidence:
PMID:12001066
distinct segmentation defects are displayed in embryos mutant for the Notch pathway genes Notch1, Lunatic fringe (Lfng), Delta-like 1 (Dll1), and Delta-like 3 (Dll3).
GO:0001757 somite specification
IMP
PMID:14960495
Specification of vertebral identity is coupled to Notch sign...
KEEP AS NON CORE
Summary: Dll1 is required for somite formation, segmentation clock synchrony and somite polarity.
Reason: Well-supported in vivo requirement as the PSM Notch ligand, but a tissue-specific outcome of its ligand function.
Supporting Evidence:
PMID:12001066
distinct segmentation defects are displayed in embryos mutant for the Notch pathway genes Notch1, Lunatic fringe (Lfng), Delta-like 1 (Dll1), and Delta-like 3 (Dll3).
GO:0001944 vasculature development
IEA
GO_REF:0000117
KEEP AS NON CORE
Summary: Broad ARBA developmental process term.
Reason: Generally consistent with Dll1's pleiotropic developmental requirements via Notch signalling, but non-specific.
GO:0001947 heart looping
IMP
PMID:12730124
Notch signaling regulates left-right asymmetry determination...
KEEP AS NON CORE
Summary: Dll1 mutants have left-right asymmetry defects owing to loss of Notch-induced Nodal at the node.
Reason: Specific developmental outcome of Dll1-Notch signalling.
Supporting Evidence:
PMID:12730124
Embryos mutant for the Notch ligand Dll1 or doubly mutant for the Notch1 and Notch2 receptors exhibit multiple defects in left-right asymmetry.
GO:0002064 epithelial cell development
IEA
GO_REF:0000117
KEEP AS NON CORE
Summary: Broad ARBA developmental process term.
Reason: Generally consistent with Dll1's pleiotropic developmental requirements via Notch signalling, but non-specific.
GO:0002315 marginal zone B cell differentiation
IMP
PMID:15146182
Delta-like 1 is necessary for the generation of marginal zon...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0002315 marginal zone B cell differentiation
IMP
PMID:19217325
Lunatic and manic fringe cooperatively enhance marginal zone...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0003002 regionalization
IEA
GO_REF:0000117
KEEP AS NON CORE
Summary: Broad ARBA developmental process term.
Reason: Generally consistent with Dll1's pleiotropic developmental requirements via Notch signalling, but non-specific.
GO:0003158 endothelium development
IEA
GO_REF:0000117
KEEP AS NON CORE
Summary: Broad ARBA developmental process term.
Reason: Generally consistent with Dll1's pleiotropic developmental requirements via Notch signalling, but non-specific.
GO:0003323 type B pancreatic cell development
IMP
PMID:22529374
Mind bomb 1 is required for pancreatic Ξ²-cell formation.
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0005112 Notch binding
IBA
GO_REF:0000033
ACCEPT
Summary: Dll1 binds Notch1 and Notch2 receptors (trans binding on adjacent cells).
Reason: Notch binding is the defining molecular activity of a DSL ligand; core.
Supporting Evidence:
file:mouse/Dll1/Dll1-deep-research-falcon.md
Dll1 functions as a membrane-bound Notch ligand that activates Notch receptors on adjacent cells through contact-dependent, trans-cellular signaling
PMID:10958687
All of the three DSL proteins bound to endogenous Notch2 on the surface of BaF3 cells
PMID:15574878
increased Delta1 binding and activation of Notch1 signaling in 293T and NIH 3T3 cells
GO:0005112 Notch binding
IEA
GO_REF:0000120
ACCEPT
Summary: Dll1 binds Notch1 and Notch2 receptors (trans binding on adjacent cells).
Reason: Notch binding is the defining molecular activity of a DSL ligand; core.
Supporting Evidence:
file:mouse/Dll1/Dll1-deep-research-falcon.md
Dll1 functions as a membrane-bound Notch ligand that activates Notch receptors on adjacent cells through contact-dependent, trans-cellular signaling
PMID:10958687
All of the three DSL proteins bound to endogenous Notch2 on the surface of BaF3 cells
PMID:15574878
increased Delta1 binding and activation of Notch1 signaling in 293T and NIH 3T3 cells
GO:0005112 Notch binding
IPI
PMID:10958687
Binding of Delta1, Jagged1, and Jagged2 to Notch2 rapidly in...
ACCEPT
Summary: Dll1 binds Notch1 and Notch2 receptors (trans binding on adjacent cells).
Reason: Notch binding is the defining molecular activity of a DSL ligand; core.
Supporting Evidence:
file:mouse/Dll1/Dll1-deep-research-falcon.md
Dll1 functions as a membrane-bound Notch ligand that activates Notch receptors on adjacent cells through contact-dependent, trans-cellular signaling
PMID:10958687
All of the three DSL proteins bound to endogenous Notch2 on the surface of BaF3 cells
PMID:15574878
increased Delta1 binding and activation of Notch1 signaling in 293T and NIH 3T3 cells
GO:0005112 Notch binding
IPI
PMID:10958687
Binding of Delta1, Jagged1, and Jagged2 to Notch2 rapidly in...
ACCEPT
Summary: Dll1 binds Notch1 and Notch2 receptors (trans binding on adjacent cells).
Reason: Notch binding is the defining molecular activity of a DSL ligand; core.
Supporting Evidence:
file:mouse/Dll1/Dll1-deep-research-falcon.md
Dll1 functions as a membrane-bound Notch ligand that activates Notch receptors on adjacent cells through contact-dependent, trans-cellular signaling
PMID:10958687
All of the three DSL proteins bound to endogenous Notch2 on the surface of BaF3 cells
PMID:15574878
increased Delta1 binding and activation of Notch1 signaling in 293T and NIH 3T3 cells
GO:0005112 Notch binding
IPI
PMID:18676613
The intracellular region of Notch ligands Dll1 and Dll3 regu...
ACCEPT
Summary: Dll1 binds Notch1 and Notch2 receptors (trans binding on adjacent cells).
Reason: Notch binding is the defining molecular activity of a DSL ligand; core.
Supporting Evidence:
file:mouse/Dll1/Dll1-deep-research-falcon.md
Dll1 functions as a membrane-bound Notch ligand that activates Notch receptors on adjacent cells through contact-dependent, trans-cellular signaling
PMID:10958687
All of the three DSL proteins bound to endogenous Notch2 on the surface of BaF3 cells
PMID:15574878
increased Delta1 binding and activation of Notch1 signaling in 293T and NIH 3T3 cells
GO:0005112 Notch binding
IPI
PMID:21985982
Delta-like 1-Lysine613 regulates notch signaling.
ACCEPT
Summary: Dll1 binds Notch1 and Notch2 receptors (trans binding on adjacent cells).
Reason: Notch binding is the defining molecular activity of a DSL ligand; core.
Supporting Evidence:
file:mouse/Dll1/Dll1-deep-research-falcon.md
Dll1 functions as a membrane-bound Notch ligand that activates Notch receptors on adjacent cells through contact-dependent, trans-cellular signaling
PMID:10958687
All of the three DSL proteins bound to endogenous Notch2 on the surface of BaF3 cells
PMID:15574878
increased Delta1 binding and activation of Notch1 signaling in 293T and NIH 3T3 cells
GO:0005112 Notch binding
ISO
GO_REF:0000096
ACCEPT
Summary: Dll1 binds Notch1 and Notch2 receptors (trans binding on adjacent cells).
Reason: Notch binding is the defining molecular activity of a DSL ligand; core.
Supporting Evidence:
file:mouse/Dll1/Dll1-deep-research-falcon.md
Dll1 functions as a membrane-bound Notch ligand that activates Notch receptors on adjacent cells through contact-dependent, trans-cellular signaling
PMID:10958687
All of the three DSL proteins bound to endogenous Notch2 on the surface of BaF3 cells
PMID:15574878
increased Delta1 binding and activation of Notch1 signaling in 293T and NIH 3T3 cells
GO:0005112 Notch binding
ISO
GO_REF:0000119
ACCEPT
Summary: Dll1 binds Notch1 and Notch2 receptors (trans binding on adjacent cells).
Reason: Notch binding is the defining molecular activity of a DSL ligand; core.
Supporting Evidence:
file:mouse/Dll1/Dll1-deep-research-falcon.md
Dll1 functions as a membrane-bound Notch ligand that activates Notch receptors on adjacent cells through contact-dependent, trans-cellular signaling
PMID:10958687
All of the three DSL proteins bound to endogenous Notch2 on the surface of BaF3 cells
PMID:15574878
increased Delta1 binding and activation of Notch1 signaling in 293T and NIH 3T3 cells
GO:0005509 calcium ion binding
IEA
GO_REF:0000002
KEEP AS NON CORE
Summary: Calcium ion binding from InterPro EGF-like Ca-binding domain.
Reason: Structural property of EGF repeats, not a characterised Dll1 function.
GO:0005515 protein binding
IPI
PMID:10958687
Binding of Delta1, Jagged1, and Jagged2 to Notch2 rapidly in...
MODIFY
Summary: IPI with Notch2 (O35516) / Notch1 (Q01705).
Reason: Generic protein binding; the informative MF is Notch binding (also annotated).
Proposed replacements: Notch binding
Supporting Evidence:
PMID:10958687
All of the three DSL proteins bound to endogenous Notch2 on the surface of BaF3 cells
GO:0005515 protein binding
IPI
PMID:12794186
The Notch ligand Delta1 is sequentially cleaved by an ADAM p...
REMOVE
Summary: IPI with Psen1 (P49769; Dll1 is a gamma-secretase substrate), MT1-MMP/Mmp14 (P50281; Dll1 is cleaved by it), MAGP-2/Mfap5 (Q9QZJ6) and ZO-1/Tjp1 (P39447).
Reason: Generic protein binding is uninformative. For Psen1 and MT1-MMP Dll1 is the protease substrate; the other interactions do not define a specific Dll1 molecular function. Removal does not dispute the reported interactions.
Supporting Evidence:
PMID:12794186
We then show that Dll1 is part of a high-molecular-weight complex containing presenilin1 and undergoes further cleavage by a gamma-secretase-like activity
GO:0005515 protein binding
IPI
PMID:14529612
Interaction of the MAGUK family member Acvrinp1 and the cyto...
MODIFY
Summary: IPI with the PDZ-domain MAGUK protein Magi2/Acvrinp1 (Q9WVQ1), via the Dll1 C-terminal PDZ-binding motif.
Reason: Generic protein binding; the interaction is PDZ-mediated.
Proposed replacements: PDZ domain binding
Supporting Evidence:
PMID:14529612
We delimited the fourth PDZ domain of Acvrinp1 and the PDZ-binding domain of Dll1 as major interacting domains.
GO:0005515 protein binding
IPI
PMID:15574878
Fringe glycosyltransferases differentially modulate Notch1 p...
MODIFY
Summary: IPI with Notch2 (O35516) / Notch1 (Q01705).
Reason: Generic protein binding; the informative MF is Notch binding (also annotated).
Proposed replacements: Notch binding
Supporting Evidence:
PMID:10958687
All of the three DSL proteins bound to endogenous Notch2 on the surface of BaF3 cells
GO:0005515 protein binding
IPI
PMID:15788413
The extracellular matrix protein MAGP-2 interacts with Jagge...
REMOVE
Summary: IPI with Psen1 (P49769; Dll1 is a gamma-secretase substrate), MT1-MMP/Mmp14 (P50281; Dll1 is cleaved by it), MAGP-2/Mfap5 (Q9QZJ6) and ZO-1/Tjp1 (P39447).
Reason: Generic protein binding is uninformative. For Psen1 and MT1-MMP Dll1 is the protease substrate; the other interactions do not define a specific Dll1 molecular function. Removal does not dispute the reported interactions.
Supporting Evidence:
PMID:12794186
We then show that Dll1 is part of a high-molecular-weight complex containing presenilin1 and undergoes further cleavage by a gamma-secretase-like activity
GO:0005515 protein binding
IPI
PMID:16000382
Mind bomb 1 is essential for generating functional Notch lig...
MODIFY
Summary: IPI with the E3 ubiquitin ligases Mib1 (Q80SY4), Neurl1 (Q923S6) and Neurl1b (Q0MW30/A8MQ27), which ubiquitinate the Dll1 cytoplasmic tail.
Reason: Generic protein binding; these interactions are with E3 ligases for which Dll1 is the substrate, captured as ubiquitin protein ligase binding.
Proposed replacements: ubiquitin protein ligase binding
Supporting Evidence:
PMID:16000382
Mib1 interacts with and regulates all of the Notch ligands, jagged 1 and jagged 2, as well as Dll1, Dll3 and Dll4.
PMID:17003037
Neuralized-2 (Neur2), which is a ubiquitin-protein isopeptide ligase (E3) that interacts with and ubiquitinates Delta.
GO:0005515 protein binding
IPI
PMID:17003037
Neuralized-2 regulates a Notch ligand in cooperation with Mi...
MODIFY
Summary: IPI with the E3 ubiquitin ligases Mib1 (Q80SY4), Neurl1 (Q923S6) and Neurl1b (Q0MW30/A8MQ27), which ubiquitinate the Dll1 cytoplasmic tail.
Reason: Generic protein binding; these interactions are with E3 ligases for which Dll1 is the substrate, captured as ubiquitin protein ligase binding.
Proposed replacements: ubiquitin protein ligase binding
Supporting Evidence:
PMID:16000382
Mib1 interacts with and regulates all of the Notch ligands, jagged 1 and jagged 2, as well as Dll1, Dll3 and Dll4.
PMID:17003037
Neuralized-2 (Neur2), which is a ubiquitin-protein isopeptide ligase (E3) that interacts with and ubiquitinates Delta.
GO:0005515 protein binding
IPI
PMID:19723503
Neuralized-2: expression in human and rodents and interactio...
MODIFY
Summary: IPI with the E3 ubiquitin ligases Mib1 (Q80SY4), Neurl1 (Q923S6) and Neurl1b (Q0MW30/A8MQ27), which ubiquitinate the Dll1 cytoplasmic tail.
Reason: Generic protein binding; these interactions are with E3 ligases for which Dll1 is the substrate, captured as ubiquitin protein ligase binding.
Proposed replacements: ubiquitin protein ligase binding
Supporting Evidence:
PMID:16000382
Mib1 interacts with and regulates all of the Notch ligands, jagged 1 and jagged 2, as well as Dll1, Dll3 and Dll4.
PMID:17003037
Neuralized-2 (Neur2), which is a ubiquitin-protein isopeptide ligase (E3) that interacts with and ubiquitinates Delta.
GO:0005515 protein binding
IPI
PMID:19723503
Neuralized-2: expression in human and rodents and interactio...
MODIFY
Summary: IPI with the E3 ubiquitin ligases Mib1 (Q80SY4), Neurl1 (Q923S6) and Neurl1b (Q0MW30/A8MQ27), which ubiquitinate the Dll1 cytoplasmic tail.
Reason: Generic protein binding; these interactions are with E3 ligases for which Dll1 is the substrate, captured as ubiquitin protein ligase binding.
Proposed replacements: ubiquitin protein ligase binding
Supporting Evidence:
PMID:16000382
Mib1 interacts with and regulates all of the Notch ligands, jagged 1 and jagged 2, as well as Dll1, Dll3 and Dll4.
PMID:17003037
Neuralized-2 (Neur2), which is a ubiquitin-protein isopeptide ligase (E3) that interacts with and ubiquitinates Delta.
GO:0005515 protein binding
IPI
PMID:21572390
MT1-MMP cleaves Dll1 to negatively regulate Notch signalling...
REMOVE
Summary: IPI with Psen1 (P49769; Dll1 is a gamma-secretase substrate), MT1-MMP/Mmp14 (P50281; Dll1 is cleaved by it), MAGP-2/Mfap5 (Q9QZJ6) and ZO-1/Tjp1 (P39447).
Reason: Generic protein binding is uninformative. For Psen1 and MT1-MMP Dll1 is the protease substrate; the other interactions do not define a specific Dll1 molecular function. Removal does not dispute the reported interactions.
Supporting Evidence:
PMID:12794186
We then show that Dll1 is part of a high-molecular-weight complex containing presenilin1 and undergoes further cleavage by a gamma-secretase-like activity
GO:0005515 protein binding
IPI
PMID:21985982
Delta-like 1-Lysine613 regulates notch signaling.
MODIFY
Summary: IPI with the E3 ubiquitin ligases Mib1 (Q80SY4), Neurl1 (Q923S6) and Neurl1b (Q0MW30/A8MQ27), which ubiquitinate the Dll1 cytoplasmic tail.
Reason: Generic protein binding; these interactions are with E3 ligases for which Dll1 is the substrate, captured as ubiquitin protein ligase binding.
Proposed replacements: ubiquitin protein ligase binding
Supporting Evidence:
PMID:16000382
Mib1 interacts with and regulates all of the Notch ligands, jagged 1 and jagged 2, as well as Dll1, Dll3 and Dll4.
PMID:17003037
Neuralized-2 (Neur2), which is a ubiquitin-protein isopeptide ligase (E3) that interacts with and ubiquitinates Delta.
GO:0005515 protein binding
IPI
PMID:24025447
Synaptojanin-2 binding protein stabilizes the Notch ligands ...
MODIFY
Summary: IPI with the PDZ-domain MAGUK protein Magi2/Acvrinp1 (Q9WVQ1), via the Dll1 C-terminal PDZ-binding motif.
Reason: Generic protein binding; the interaction is PDZ-mediated.
Proposed replacements: PDZ domain binding
Supporting Evidence:
PMID:14529612
We delimited the fourth PDZ domain of Acvrinp1 and the PDZ-binding domain of Dll1 as major interacting domains.
GO:0005515 protein binding
IPI
PMID:24715457
Cadherin-based adhesions in the apical endfoot are required ...
REMOVE
Summary: IPI with Psen1 (P49769; Dll1 is a gamma-secretase substrate), MT1-MMP/Mmp14 (P50281; Dll1 is cleaved by it), MAGP-2/Mfap5 (Q9QZJ6) and ZO-1/Tjp1 (P39447).
Reason: Generic protein binding is uninformative. For Psen1 and MT1-MMP Dll1 is the protease substrate; the other interactions do not define a specific Dll1 molecular function. Removal does not dispute the reported interactions.
Supporting Evidence:
PMID:12794186
We then show that Dll1 is part of a high-molecular-weight complex containing presenilin1 and undergoes further cleavage by a gamma-secretase-like activity
GO:0005634 nucleus
EXP
PMID:12794186
The Notch ligand Delta1 is sequentially cleaved by an ADAM p...
KEEP AS NON CORE
Summary: The Dll1 intracellular domain released by gamma-secretase localises in part to the nucleus.
Reason: Supported for the cleaved ICD fragment, but the physiological nuclear function of the Dll1 ICD is not established; the ligand acts at the plasma membrane.
Supporting Evidence:
PMID:12794186
releasing the intracellular domain that localizes in part to the nucleus.
GO:0005634 nucleus
IEA
GO_REF:0000044
KEEP AS NON CORE
Summary: The Dll1 intracellular domain released by gamma-secretase localises in part to the nucleus.
Reason: Supported for the cleaved ICD fragment, but the physiological nuclear function of the Dll1 ICD is not established; the ligand acts at the plasma membrane.
Supporting Evidence:
PMID:12794186
releasing the intracellular domain that localizes in part to the nucleus.
GO:0005886 plasma membrane
EXP
PMID:12794186
The Notch ligand Delta1 is sequentially cleaved by an ADAM p...
ACCEPT
Summary: Dll1 is presented at the plasma membrane of signal-sending cells.
Reason: Core location of ligand activity.
Supporting Evidence:
PMID:16000382
in the Mib1-/- mutants, Dll1 accumulated in the plasma membrane, while it was localized in the cytoplasm near the nucleus in the wild types
GO:0005886 plasma membrane
IBA
GO_REF:0000033
ACCEPT
Summary: Dll1 is presented at the plasma membrane of signal-sending cells.
Reason: Core location of ligand activity.
Supporting Evidence:
PMID:16000382
in the Mib1-/- mutants, Dll1 accumulated in the plasma membrane, while it was localized in the cytoplasm near the nucleus in the wild types
GO:0005886 plasma membrane
IDA
PMID:16000382
Mind bomb 1 is essential for generating functional Notch lig...
ACCEPT
Summary: Dll1 is presented at the plasma membrane of signal-sending cells.
Reason: Core location of ligand activity.
Supporting Evidence:
PMID:16000382
in the Mib1-/- mutants, Dll1 accumulated in the plasma membrane, while it was localized in the cytoplasm near the nucleus in the wild types
GO:0005886 plasma membrane
IEA
GO_REF:0000044
ACCEPT
Summary: Dll1 is presented at the plasma membrane of signal-sending cells.
Reason: Core location of ligand activity.
Supporting Evidence:
PMID:16000382
in the Mib1-/- mutants, Dll1 accumulated in the plasma membrane, while it was localized in the cytoplasm near the nucleus in the wild types
GO:0005886 plasma membrane
TAS
Reactome:R-MMU-2060798
ACCEPT
Summary: Dll1 is presented at the plasma membrane of signal-sending cells.
Reason: Core location of ligand activity.
Supporting Evidence:
PMID:16000382
in the Mib1-/- mutants, Dll1 accumulated in the plasma membrane, while it was localized in the cytoplasm near the nucleus in the wild types
GO:0005886 plasma membrane
TAS
Reactome:R-MMU-2193065
ACCEPT
Summary: Dll1 is presented at the plasma membrane of signal-sending cells.
Reason: Core location of ligand activity.
Supporting Evidence:
PMID:16000382
in the Mib1-/- mutants, Dll1 accumulated in the plasma membrane, while it was localized in the cytoplasm near the nucleus in the wild types
GO:0005886 plasma membrane
TAS
Reactome:R-MMU-9012873
ACCEPT
Summary: Dll1 is presented at the plasma membrane of signal-sending cells.
Reason: Core location of ligand activity.
Supporting Evidence:
PMID:16000382
in the Mib1-/- mutants, Dll1 accumulated in the plasma membrane, while it was localized in the cytoplasm near the nucleus in the wild types
GO:0005886 plasma membrane
TAS
Reactome:R-MMU-9023350
ACCEPT
Summary: Dll1 is presented at the plasma membrane of signal-sending cells.
Reason: Core location of ligand activity.
Supporting Evidence:
PMID:16000382
in the Mib1-/- mutants, Dll1 accumulated in the plasma membrane, while it was localized in the cytoplasm near the nucleus in the wild types
GO:0005886 plasma membrane
TAS
Reactome:R-MMU-9793915
ACCEPT
Summary: Dll1 is presented at the plasma membrane of signal-sending cells.
Reason: Core location of ligand activity.
Supporting Evidence:
PMID:16000382
in the Mib1-/- mutants, Dll1 accumulated in the plasma membrane, while it was localized in the cytoplasm near the nucleus in the wild types
GO:0005886 plasma membrane
TAS
Reactome:R-MMU-9825286
ACCEPT
Summary: Dll1 is presented at the plasma membrane of signal-sending cells.
Reason: Core location of ligand activity.
Supporting Evidence:
PMID:16000382
in the Mib1-/- mutants, Dll1 accumulated in the plasma membrane, while it was localized in the cytoplasm near the nucleus in the wild types
GO:0005886 plasma membrane
TAS
Reactome:R-MMU-9832194
ACCEPT
Summary: Dll1 is presented at the plasma membrane of signal-sending cells.
Reason: Core location of ligand activity.
Supporting Evidence:
PMID:16000382
in the Mib1-/- mutants, Dll1 accumulated in the plasma membrane, while it was localized in the cytoplasm near the nucleus in the wild types
GO:0005911 cell-cell junction
IEA
GO_REF:0000117
KEEP AS NON CORE
Summary: Dll1 localises at adherens junctions of apical endfeet/termini of neural progenitor processes, recruited by MAGI1.
Reason: Supported specialised membrane subdomain; not required for ligand activity per se.
Supporting Evidence:
PMID:24715457
Both Notch1 and its ligand Dll1 are distributed around AJs in the apical endfeet
PMID:15908431
Dll1 was recruited to these AJs through binding to MAGI1.
GO:0005912 adherens junction
IDA
PMID:15908431
MAGI1 recruits Dll1 to cadherin-based adherens junctions and...
KEEP AS NON CORE
Summary: Dll1 localises at adherens junctions of apical endfeet/termini of neural progenitor processes, recruited by MAGI1.
Reason: Supported specialised membrane subdomain; not required for ligand activity per se.
Supporting Evidence:
PMID:24715457
Both Notch1 and its ligand Dll1 are distributed around AJs in the apical endfeet
PMID:15908431
Dll1 was recruited to these AJs through binding to MAGI1.
GO:0005912 adherens junction
IDA
PMID:24715457
Cadherin-based adhesions in the apical endfoot are required ...
KEEP AS NON CORE
Summary: Dll1 localises at adherens junctions of apical endfeet/termini of neural progenitor processes, recruited by MAGI1.
Reason: Supported specialised membrane subdomain; not required for ligand activity per se.
Supporting Evidence:
PMID:24715457
Both Notch1 and its ligand Dll1 are distributed around AJs in the apical endfeet
PMID:15908431
Dll1 was recruited to these AJs through binding to MAGI1.
GO:0005912 adherens junction
IEA
GO_REF:0000044
KEEP AS NON CORE
Summary: Dll1 localises at adherens junctions of apical endfeet/termini of neural progenitor processes, recruited by MAGI1.
Reason: Supported specialised membrane subdomain; not required for ligand activity per se.
Supporting Evidence:
PMID:24715457
Both Notch1 and its ligand Dll1 are distributed around AJs in the apical endfeet
PMID:15908431
Dll1 was recruited to these AJs through binding to MAGI1.
GO:0007154 cell communication
IEA
GO_REF:0000002
ACCEPT
Summary: Dll1 mediates juxtacrine cell-cell signalling via Notch.
Reason: Correct, general description of the ligand role.
Supporting Evidence:
PMID:16621992
The block in myelopoiesis is the direct result of Notch signaling within the hemopoietic progenitor
GO:0007219 Notch signaling pathway
IBA
GO_REF:0000033
ACCEPT
Summary: Dll1 is an activating ligand of canonical Notch signalling.
Reason: Core process.
Supporting Evidence:
PMID:19144989
DLL1 is an essential Notch ligand in the vascular endothelium of large arteries to activate Notch1 and maintain arterial identity.
PMID:12730124
Dll1-mediated Notch signaling is essential for generation of left-right asymmetry
GO:0007219 Notch signaling pathway
IEA
GO_REF:0000120
ACCEPT
Summary: Dll1 is an activating ligand of canonical Notch signalling.
Reason: Core process.
Supporting Evidence:
PMID:19144989
DLL1 is an essential Notch ligand in the vascular endothelium of large arteries to activate Notch1 and maintain arterial identity.
PMID:12730124
Dll1-mediated Notch signaling is essential for generation of left-right asymmetry
GO:0007219 Notch signaling pathway
IEP
PMID:23688253
Delta-like 1 regulates Bergmann glial monolayer formation du...
ACCEPT
Summary: Dll1 is an activating ligand of canonical Notch signalling.
Reason: Core process.
Supporting Evidence:
PMID:19144989
DLL1 is an essential Notch ligand in the vascular endothelium of large arteries to activate Notch1 and maintain arterial identity.
PMID:12730124
Dll1-mediated Notch signaling is essential for generation of left-right asymmetry
GO:0007219 Notch signaling pathway
IMP
PMID:12730124
Notch signaling regulates left-right asymmetry determination...
ACCEPT
Summary: Dll1 is an activating ligand of canonical Notch signalling.
Reason: Core process.
Supporting Evidence:
PMID:19144989
DLL1 is an essential Notch ligand in the vascular endothelium of large arteries to activate Notch1 and maintain arterial identity.
PMID:12730124
Dll1-mediated Notch signaling is essential for generation of left-right asymmetry
GO:0007219 Notch signaling pathway
IMP
PMID:19389377
Dll1 and Dll4 function sequentially in the retina and pV2 do...
ACCEPT
Summary: Dll1 is an activating ligand of canonical Notch signalling.
Reason: Core process.
Supporting Evidence:
PMID:19144989
DLL1 is an essential Notch ligand in the vascular endothelium of large arteries to activate Notch1 and maintain arterial identity.
PMID:12730124
Dll1-mediated Notch signaling is essential for generation of left-right asymmetry
GO:0007219 Notch signaling pathway
ISO
GO_REF:0000119
ACCEPT
Summary: Dll1 is an activating ligand of canonical Notch signalling.
Reason: Core process.
Supporting Evidence:
PMID:19144989
DLL1 is an essential Notch ligand in the vascular endothelium of large arteries to activate Notch1 and maintain arterial identity.
PMID:12730124
Dll1-mediated Notch signaling is essential for generation of left-right asymmetry
GO:0007219 Notch signaling pathway
TAS
PMID:15821257
Segmental expression of Notch and Hairy genes in nephrogenes...
ACCEPT
Summary: Dll1 is an activating ligand of canonical Notch signalling.
Reason: Core process.
Supporting Evidence:
PMID:19144989
DLL1 is an essential Notch ligand in the vascular endothelium of large arteries to activate Notch1 and maintain arterial identity.
PMID:12730124
Dll1-mediated Notch signaling is essential for generation of left-right asymmetry
GO:0007267 cell-cell signaling
IDA
PMID:16621992
Notch signaling requires GATA-2 to inhibit myelopoiesis from...
ACCEPT
Summary: Dll1 mediates juxtacrine cell-cell signalling via Notch.
Reason: Correct, general description of the ligand role.
Supporting Evidence:
PMID:16621992
The block in myelopoiesis is the direct result of Notch signaling within the hemopoietic progenitor
GO:0007368 determination of left/right symmetry
IMP
PMID:12730124
Notch signaling regulates left-right asymmetry determination...
KEEP AS NON CORE
Summary: Dll1 mutants have left-right asymmetry defects owing to loss of Notch-induced Nodal at the node.
Reason: Specific developmental outcome of Dll1-Notch signalling.
Supporting Evidence:
PMID:12730124
Embryos mutant for the Notch ligand Dll1 or doubly mutant for the Notch1 and Notch2 receptors exhibit multiple defects in left-right asymmetry.
GO:0007386 compartment pattern specification
IMP
PMID:12001066
Segmentation defects of Notch pathway mutants and absence of...
KEEP AS NON CORE
Summary: Dll1 is required for somite formation, segmentation clock synchrony and somite polarity.
Reason: Well-supported in vivo requirement as the PSM Notch ligand, but a tissue-specific outcome of its ligand function.
Supporting Evidence:
PMID:12001066
distinct segmentation defects are displayed in embryos mutant for the Notch pathway genes Notch1, Lunatic fringe (Lfng), Delta-like 1 (Dll1), and Delta-like 3 (Dll3).
GO:0007399 nervous system development
NAS
PMID:10473134
Expression of the mouse Delta1 gene during organogenesis and...
KEEP AS NON CORE
Summary: NAS from expression studies of Dll1 during organogenesis and in the inner ear.
Reason: Broadly consistent with functional data (Dll1 null embryos die mid-gestation; conditional loss affects neurogenesis and hair cell patterning), but these are pleiotropic consequences of Notch activation rather than distinct Dll1 functions.
GO:0008217 regulation of blood pressure
IMP
PMID:19562077
Dll1 haploinsufficiency in adult mice leads to a complex phe...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0008284 positive regulation of cell population proliferation
IMP
PMID:22096075
Ptf1a-mediated control of Dll1 reveals an alternative to the...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0008285 negative regulation of cell population proliferation
IMP
PMID:17960184
Role of the Notch ligand Delta1 in embryonic and adult mouse...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0009792 embryo development ending in birth or egg hatching
IEA
GO_REF:0000117
KEEP AS NON CORE
Summary: Broad ARBA developmental process term.
Reason: Generally consistent with Dll1's pleiotropic developmental requirements via Notch signalling, but non-specific.
GO:0009887 animal organ morphogenesis
NAS
PMID:10473134
Expression of the mouse Delta1 gene during organogenesis and...
KEEP AS NON CORE
Summary: NAS from expression studies of Dll1 during organogenesis and in the inner ear.
Reason: Broadly consistent with functional data (Dll1 null embryos die mid-gestation; conditional loss affects neurogenesis and hair cell patterning), but these are pleiotropic consequences of Notch activation rather than distinct Dll1 functions.
GO:0009912 auditory receptor cell fate commitment
NAS
PMID:10473135
Expression of Delta1 and Serrate1 (Jagged1) in the mouse inn...
KEEP AS NON CORE
Summary: NAS from expression studies of Dll1 during organogenesis and in the inner ear.
Reason: Broadly consistent with functional data (Dll1 null embryos die mid-gestation; conditional loss affects neurogenesis and hair cell patterning), but these are pleiotropic consequences of Notch activation rather than distinct Dll1 functions.
GO:0009912 auditory receptor cell fate commitment
NAS
PMID:10704388
Notch signalling is required for cyclic expression of the ha...
KEEP AS NON CORE
Summary: NAS from expression studies of Dll1 during organogenesis and in the inner ear.
Reason: Broadly consistent with functional data (Dll1 null embryos die mid-gestation; conditional loss affects neurogenesis and hair cell patterning), but these are pleiotropic consequences of Notch activation rather than distinct Dll1 functions.
GO:0009954 proximal/distal pattern formation
IMP
PMID:22529374
Mind bomb 1 is required for pancreatic Ξ²-cell formation.
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0010628 positive regulation of gene expression
IMP
PMID:11076679
Oscillating expression of c-Hey2 in the presomitic mesoderm ...
KEEP AS NON CORE
Summary: Loss of Dll1 reduces Notch target gene expression (e.g. Nodal, Hey2) in vivo.
Reason: Indirect: Dll1 activates Notch at the membrane; transcriptional effects are mediated by NICD-RBP-J downstream.
Supporting Evidence:
PMID:12730124
the Notch pathway acts upstream of Nodal expression during left-right asymmetry determination in mice.
GO:0010628 positive regulation of gene expression
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: Loss of Dll1 reduces Notch target gene expression (e.g. Nodal, Hey2) in vivo.
Reason: Indirect: Dll1 activates Notch at the membrane; transcriptional effects are mediated by NICD-RBP-J downstream.
Supporting Evidence:
PMID:12730124
the Notch pathway acts upstream of Nodal expression during left-right asymmetry determination in mice.
GO:0014002 astrocyte development
IMP
PMID:23688253
Delta-like 1 regulates Bergmann glial monolayer formation du...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0014807 regulation of somitogenesis
IMP
PMID:26114479
Context-Dependent Functional Divergence of the Notch Ligands...
KEEP AS NON CORE
Summary: Dll1 is required for somite formation, segmentation clock synchrony and somite polarity.
Reason: Well-supported in vivo requirement as the PSM Notch ligand, but a tissue-specific outcome of its ligand function.
Supporting Evidence:
PMID:12001066
distinct segmentation defects are displayed in embryos mutant for the Notch pathway genes Notch1, Lunatic fringe (Lfng), Delta-like 1 (Dll1), and Delta-like 3 (Dll3).
GO:0016020 membrane
IEA
GO_REF:0000002
ACCEPT
Summary: Membrane (single-pass type I).
Reason: Correct.
GO:0016324 apical plasma membrane
IDA
PMID:24715457
Cadherin-based adhesions in the apical endfoot are required ...
KEEP AS NON CORE
Summary: Dll1 localises at adherens junctions of apical endfeet/termini of neural progenitor processes, recruited by MAGI1.
Reason: Supported specialised membrane subdomain; not required for ligand activity per se.
Supporting Evidence:
PMID:24715457
Both Notch1 and its ligand Dll1 are distributed around AJs in the apical endfeet
PMID:15908431
Dll1 was recruited to these AJs through binding to MAGI1.
GO:0016324 apical plasma membrane
IEA
GO_REF:0000120
KEEP AS NON CORE
Summary: Dll1 localises at adherens junctions of apical endfeet/termini of neural progenitor processes, recruited by MAGI1.
Reason: Supported specialised membrane subdomain; not required for ligand activity per se.
Supporting Evidence:
PMID:24715457
Both Notch1 and its ligand Dll1 are distributed around AJs in the apical endfeet
PMID:15908431
Dll1 was recruited to these AJs through binding to MAGI1.
GO:0021510 spinal cord development
IMP
PMID:19389377
Dll1 and Dll4 function sequentially in the retina and pV2 do...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0021688 cerebellar molecular layer formation
IMP
PMID:23688253
Delta-like 1 regulates Bergmann glial monolayer formation du...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0021693 cerebellar Purkinje cell layer structural organization
IMP
PMID:23688253
Delta-like 1 regulates Bergmann glial monolayer formation du...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0030155 regulation of cell adhesion
IMP
PMID:22940113
Colonization of the satellite cell niche by skeletal muscle ...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0030182 neuron differentiation
IEA
GO_REF:0000117
KEEP AS NON CORE
Summary: Broad ARBA developmental process term.
Reason: Generally consistent with Dll1's pleiotropic developmental requirements via Notch signalling, but non-specific.
GO:0030857 negative regulation of epithelial cell differentiation
IMP
PMID:21915337
Delta1 expression, cell cycle exit, and commitment to a spec...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0030947 regulation of vascular endothelial growth factor receptor signaling pathway
IMP
PMID:19144989
DLL1-mediated Notch activation regulates endothelial identit...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0030957 Tat protein binding
IEA
GO_REF:0000107
MODIFY
Summary: Tat protein binding transferred from human DLL1, whose source annotation is an IPI to PMID:15509766 (Wright et al. 2004), a study of Delta binding to the PDZ4 domain of the MAGI1/2/3 scaffolds, not of HIV-1 Tat.
Reason: Harmonised with the human DLL1 review, which MODIFYs the source IPI to PDZ domain binding because the cited experiment shows the Delta C-terminal motif binding MAGI PDZ4; 'Tat protein binding' does not describe that experiment. The C-terminal PDZ-binding motif is conserved in mouse Dll1, and mouse Dll1 binding to the PDZ protein Magi2 is separately annotated here (protein binding IPIs modified to PDZ domain binding), so the transferred annotation is corrected to PDZ domain binding rather than removed. Non-core.
Propagation Review
Root cause: SOURCE BAD
Failure modes: SOURCE MISCITATION
Sources checked:
UniProtKB:O00548 Β· DLL1 SOURCE BAD
The human DLL1 source IPI (PMID:15509766) describes Delta binding to MAGI PDZ4, not HIV-1 Tat; the human DLL1 review MODIFYs it to PDZ domain binding, and the transferred term is corrected the same way here.
Proposed replacements: PDZ domain binding
Supporting Evidence:
PMID:15509766
We show that these Deltas associate with the membrane-associated scaffolding proteins MAGI1, MAGI2 and MAGI3, through a direct interaction between the C termini of the Deltas and a specific PDZ domain (PDZ4) of the MAGIs.
GO:0030957 Tat protein binding
ISO
GO_REF:0000119
MODIFY
Summary: Tat protein binding transferred from human DLL1, whose source annotation is an IPI to PMID:15509766 (Wright et al. 2004), a study of Delta binding to the PDZ4 domain of the MAGI1/2/3 scaffolds, not of HIV-1 Tat.
Reason: Harmonised with the human DLL1 review, which MODIFYs the source IPI to PDZ domain binding because the cited experiment shows the Delta C-terminal motif binding MAGI PDZ4; 'Tat protein binding' does not describe that experiment. The C-terminal PDZ-binding motif is conserved in mouse Dll1, and mouse Dll1 binding to the PDZ protein Magi2 is separately annotated here (protein binding IPIs modified to PDZ domain binding), so the transferred annotation is corrected to PDZ domain binding rather than removed. Non-core.
Propagation Review
Root cause: SOURCE BAD
Failure modes: SOURCE MISCITATION
Sources checked:
UniProtKB:O00548 Β· DLL1 SOURCE BAD
The human DLL1 source IPI (PMID:15509766) describes Delta binding to MAGI PDZ4, not HIV-1 Tat; the human DLL1 review MODIFYs it to PDZ domain binding, and the transferred term is corrected the same way here.
Proposed replacements: PDZ domain binding
Supporting Evidence:
PMID:15509766
We show that these Deltas associate with the membrane-associated scaffolding proteins MAGI1, MAGI2 and MAGI3, through a direct interaction between the C termini of the Deltas and a specific PDZ domain (PDZ4) of the MAGIs.
GO:0031410 cytoplasmic vesicle
IDA
PMID:16000382
Mind bomb 1 is essential for generating functional Notch lig...
KEEP AS NON CORE
Summary: Endocytosed Dll1 in cytoplasmic vesicles, dependent on Mib1.
Reason: Reflects ligand endocytosis/recycling, part of the activation mechanism; non-core location.
Supporting Evidence:
PMID:16000382
indicating that Mib1 is essential for the endocytosis of Notch ligand.
GO:0032693 negative regulation of interleukin-10 production
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0032693 negative regulation of interleukin-10 production
ISO
GO_REF:0000119
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0034351 negative regulation of glial cell apoptotic process
IMP
PMID:23688253
Delta-like 1 regulates Bergmann glial monolayer formation du...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0035265 organ growth
IMP
PMID:22096075
Ptf1a-mediated control of Dll1 reveals an alternative to the...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0040008 regulation of growth
IMP
PMID:19562077
Dll1 haploinsufficiency in adult mice leads to a complex phe...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0042472 inner ear morphogenesis
NAS
PMID:9858718
Distinct expression patterns of notch family receptors and l...
KEEP AS NON CORE
Summary: NAS from expression studies of Dll1 during organogenesis and in the inner ear.
Reason: Broadly consistent with functional data (Dll1 null embryos die mid-gestation; conditional loss affects neurogenesis and hair cell patterning), but these are pleiotropic consequences of Notch activation rather than distinct Dll1 functions.
GO:0042475 odontogenesis of dentin-containing tooth
NAS
PMID:9882480
Delta-notch signaling in odontogenesis: correlation with cyt...
MARK AS OVER ANNOTATED
Summary: NAS from expression correlation of Delta/Notch genes with tooth cytodifferentiation.
Reason: Expression-based statement without functional evidence for Dll1 in odontogenesis.
GO:0042491 inner ear auditory receptor cell differentiation
NAS
PMID:9858718
Distinct expression patterns of notch family receptors and l...
KEEP AS NON CORE
Summary: NAS from expression studies of Dll1 during organogenesis and in the inner ear.
Reason: Broadly consistent with functional data (Dll1 null embryos die mid-gestation; conditional loss affects neurogenesis and hair cell patterning), but these are pleiotropic consequences of Notch activation rather than distinct Dll1 functions.
GO:0045121 membrane raft
IDA
PMID:18676613
The intracellular region of Notch ligands Dll1 and Dll3 regu...
KEEP AS NON CORE
Summary: Dll1 associates with lipid rafts; K613R mutant has increased raft retention.
Reason: Supported membrane microdomain localisation; non-core.
Supporting Evidence:
PMID:21985982
did enhance the fraction associated with lipid rafts.
GO:0045121 membrane raft
IDA
PMID:21985982
Delta-like 1-Lysine613 regulates notch signaling.
KEEP AS NON CORE
Summary: Dll1 associates with lipid rafts; K613R mutant has increased raft retention.
Reason: Supported membrane microdomain localisation; non-core.
Supporting Evidence:
PMID:21985982
did enhance the fraction associated with lipid rafts.
GO:0045121 membrane raft
IEA
GO_REF:0000044
KEEP AS NON CORE
Summary: Dll1 associates with lipid rafts; K613R mutant has increased raft retention.
Reason: Supported membrane microdomain localisation; non-core.
Supporting Evidence:
PMID:21985982
did enhance the fraction associated with lipid rafts.
GO:0045165 cell fate commitment
IEA
GO_REF:0000117
KEEP AS NON CORE
Summary: Broad ARBA developmental process term.
Reason: Generally consistent with Dll1's pleiotropic developmental requirements via Notch signalling, but non-specific.
GO:0045596 negative regulation of cell differentiation
IMP
PMID:10476967
Notch signalling controls pancreatic cell differentiation.
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0045596 negative regulation of cell differentiation
IMP
PMID:16495313
Notch ligands with contrasting functions: Jagged1 and Delta1...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0045596 negative regulation of cell differentiation
IMP
PMID:21238454
Dll1- and dll4-mediated notch signaling are required for hom...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0045605 negative regulation of epidermal cell differentiation
IMP
PMID:17960184
Role of the Notch ligand Delta1 in embryonic and adult mouse...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0045608 negative regulation of inner ear auditory receptor cell differentiation
IMP
PMID:16495313
Notch ligands with contrasting functions: Jagged1 and Delta1...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0045638 negative regulation of myeloid cell differentiation
IDA
PMID:16621992
Notch signaling requires GATA-2 to inhibit myelopoiesis from...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0045662 negative regulation of myoblast differentiation
IMP
PMID:17194759
Premature myogenic differentiation and depletion of progenit...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0045665 negative regulation of neuron differentiation
IMP
PMID:19389377
Dll1 and Dll4 function sequentially in the retina and pV2 do...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0045665 negative regulation of neuron differentiation
IMP
PMID:20081190
Domain-specific control of neurogenesis achieved through pat...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0045746 negative regulation of Notch signaling pathway
IBA
GO_REF:0000033
KEEP AS NON CORE
Summary: IBA (PANTHER:PTN001170801) negative regulation of Notch signaling pathway, reflecting ligand cis-inhibition in the family.
Reason: DSL ligands including Dll1 can cis-inhibit Notch in the same cell; this is a genuine but secondary aspect of Dll1 function relative to trans-activation.
Supporting Evidence:
file:mouse/Dll1/Dll1-deep-research-falcon.md
Dll1 also mediates cis-inhibition when present in the same cell as Notch
GO:0045747 positive regulation of Notch signaling pathway
IDA
PMID:10958687
Binding of Delta1, Jagged1, and Jagged2 to Notch2 rapidly in...
KEEP AS NON CORE
Summary: Dll1 binding activates Notch cleavage and target transcription.
Reason: Correct (Dll1 trans-activation of Notch is directly supported by receptor activation assays and in vivo genetics), but as the activating ligand Dll1 is a participant in the Notch signaling pathway itself (GO:0007219, accepted as the core process) rather than a regulator of it, so this regulation term is retained as non-core. Harmonised with the human DLL1 review, which treats the same term as KEEP_AS_NON_CORE for the same reason.
Supporting Evidence:
PMID:10958687
binding of DSL proteins to Notch2 also activated the transcription of reporter genes driven by the RBP-Jkappa-responsive promoter.
GO:0045747 positive regulation of Notch signaling pathway
IDA
PMID:15574878
Fringe glycosyltransferases differentially modulate Notch1 p...
KEEP AS NON CORE
Summary: Dll1 binding activates Notch cleavage and target transcription.
Reason: Correct (Dll1 trans-activation of Notch is directly supported by receptor activation assays and in vivo genetics), but as the activating ligand Dll1 is a participant in the Notch signaling pathway itself (GO:0007219, accepted as the core process) rather than a regulator of it, so this regulation term is retained as non-core. Harmonised with the human DLL1 review, which treats the same term as KEEP_AS_NON_CORE for the same reason.
Supporting Evidence:
PMID:10958687
binding of DSL proteins to Notch2 also activated the transcription of reporter genes driven by the RBP-Jkappa-responsive promoter.
GO:0045747 positive regulation of Notch signaling pathway
IDA
PMID:18676613
The intracellular region of Notch ligands Dll1 and Dll3 regu...
KEEP AS NON CORE
Summary: Dll1 binding activates Notch cleavage and target transcription.
Reason: Correct (Dll1 trans-activation of Notch is directly supported by receptor activation assays and in vivo genetics), but as the activating ligand Dll1 is a participant in the Notch signaling pathway itself (GO:0007219, accepted as the core process) rather than a regulator of it, so this regulation term is retained as non-core. Harmonised with the human DLL1 review, which treats the same term as KEEP_AS_NON_CORE for the same reason.
Supporting Evidence:
PMID:10958687
binding of DSL proteins to Notch2 also activated the transcription of reporter genes driven by the RBP-Jkappa-responsive promoter.
GO:0045747 positive regulation of Notch signaling pathway
IDA
PMID:26114479
Context-Dependent Functional Divergence of the Notch Ligands...
KEEP AS NON CORE
Summary: Dll1 binding activates Notch cleavage and target transcription.
Reason: Correct (Dll1 trans-activation of Notch is directly supported by receptor activation assays and in vivo genetics), but as the activating ligand Dll1 is a participant in the Notch signaling pathway itself (GO:0007219, accepted as the core process) rather than a regulator of it, so this regulation term is retained as non-core. Harmonised with the human DLL1 review, which treats the same term as KEEP_AS_NON_CORE for the same reason.
Supporting Evidence:
PMID:10958687
binding of DSL proteins to Notch2 also activated the transcription of reporter genes driven by the RBP-Jkappa-responsive promoter.
GO:0045747 positive regulation of Notch signaling pathway
IEA
GO_REF:0000117
KEEP AS NON CORE
Summary: Dll1 binding activates Notch cleavage and target transcription.
Reason: Correct (Dll1 trans-activation of Notch is directly supported by receptor activation assays and in vivo genetics), but as the activating ligand Dll1 is a participant in the Notch signaling pathway itself (GO:0007219, accepted as the core process) rather than a regulator of it, so this regulation term is retained as non-core. Harmonised with the human DLL1 review, which treats the same term as KEEP_AS_NON_CORE for the same reason.
Supporting Evidence:
PMID:10958687
binding of DSL proteins to Notch2 also activated the transcription of reporter genes driven by the RBP-Jkappa-responsive promoter.
GO:0045747 positive regulation of Notch signaling pathway
IMP
PMID:19144989
DLL1-mediated Notch activation regulates endothelial identit...
KEEP AS NON CORE
Summary: Dll1 binding activates Notch cleavage and target transcription.
Reason: Correct (Dll1 trans-activation of Notch is directly supported by receptor activation assays and in vivo genetics), but as the activating ligand Dll1 is a participant in the Notch signaling pathway itself (GO:0007219, accepted as the core process) rather than a regulator of it, so this regulation term is retained as non-core. Harmonised with the human DLL1 review, which treats the same term as KEEP_AS_NON_CORE for the same reason.
Supporting Evidence:
PMID:10958687
binding of DSL proteins to Notch2 also activated the transcription of reporter genes driven by the RBP-Jkappa-responsive promoter.
GO:0045747 positive regulation of Notch signaling pathway
IMP
PMID:19389377
Dll1 and Dll4 function sequentially in the retina and pV2 do...
KEEP AS NON CORE
Summary: Dll1 binding activates Notch cleavage and target transcription.
Reason: Correct (Dll1 trans-activation of Notch is directly supported by receptor activation assays and in vivo genetics), but as the activating ligand Dll1 is a participant in the Notch signaling pathway itself (GO:0007219, accepted as the core process) rather than a regulator of it, so this regulation term is retained as non-core. Harmonised with the human DLL1 review, which treats the same term as KEEP_AS_NON_CORE for the same reason.
Supporting Evidence:
PMID:10958687
binding of DSL proteins to Notch2 also activated the transcription of reporter genes driven by the RBP-Jkappa-responsive promoter.
GO:0045747 positive regulation of Notch signaling pathway
IMP
PMID:21915337
Delta1 expression, cell cycle exit, and commitment to a spec...
KEEP AS NON CORE
Summary: Dll1 binding activates Notch cleavage and target transcription.
Reason: Correct (Dll1 trans-activation of Notch is directly supported by receptor activation assays and in vivo genetics), but as the activating ligand Dll1 is a participant in the Notch signaling pathway itself (GO:0007219, accepted as the core process) rather than a regulator of it, so this regulation term is retained as non-core. Harmonised with the human DLL1 review, which treats the same term as KEEP_AS_NON_CORE for the same reason.
Supporting Evidence:
PMID:10958687
binding of DSL proteins to Notch2 also activated the transcription of reporter genes driven by the RBP-Jkappa-responsive promoter.
GO:0045747 positive regulation of Notch signaling pathway
ISO
GO_REF:0000096
KEEP AS NON CORE
Summary: Dll1 binding activates Notch cleavage and target transcription.
Reason: Correct (Dll1 trans-activation of Notch is directly supported by receptor activation assays and in vivo genetics), but as the activating ligand Dll1 is a participant in the Notch signaling pathway itself (GO:0007219, accepted as the core process) rather than a regulator of it, so this regulation term is retained as non-core. Harmonised with the human DLL1 review, which treats the same term as KEEP_AS_NON_CORE for the same reason.
Supporting Evidence:
PMID:10958687
binding of DSL proteins to Notch2 also activated the transcription of reporter genes driven by the RBP-Jkappa-responsive promoter.
GO:0045807 positive regulation of endocytosis
IDA
PMID:18676613
The intracellular region of Notch ligands Dll1 and Dll3 regu...
KEEP AS NON CORE
Summary: Ubiquitinated, recycled Dll1 induces transendocytosis of the Notch1 extracellular domain into the ligand cell.
Reason: Mechanistic component of ligand activation; non-core.
Supporting Evidence:
PMID:18676613
is endocytosed, recycled, and interacts with Notch1 but is unable to induce transendocytosis of the extracellular region of Notch1 or to signal.
GO:0045944 positive regulation of transcription by RNA polymerase II
IMP
PMID:12730124
Notch signaling regulates left-right asymmetry determination...
KEEP AS NON CORE
Summary: Loss of Dll1 reduces Notch target gene expression (e.g. Nodal, Hey2) in vivo.
Reason: Indirect: Dll1 activates Notch at the membrane; transcriptional effects are mediated by NICD-RBP-J downstream.
Supporting Evidence:
PMID:12730124
the Notch pathway acts upstream of Nodal expression during left-right asymmetry determination in mice.
GO:0046331 lateral inhibition
IDA
PMID:18997111
Selection of differentiating cells by different levels of de...
ACCEPT
Summary: Dll1 mediates lateral inhibition in neural precursors, inner ear and intestine.
Reason: Lateral inhibition is the canonical developmental process executed by Delta ligands; directly supported by mosaic Dll1 deletion and expression dynamics.
Supporting Evidence:
PMID:18997111
different levels of Dll1 expression determine the fate of NPCs through cell-cell interactions, most likely through the Notch-Delta lateral inhibitory signaling pathway
PMID:16495313
In the absence of Dll1, auditory hair cells develop early and in excess, in agreement with the lateral inhibition hypothesis.
GO:0046331 lateral inhibition
IMP
PMID:21915337
Delta1 expression, cell cycle exit, and commitment to a spec...
ACCEPT
Summary: Dll1 mediates lateral inhibition in neural precursors, inner ear and intestine.
Reason: Lateral inhibition is the canonical developmental process executed by Delta ligands; directly supported by mosaic Dll1 deletion and expression dynamics.
Supporting Evidence:
PMID:18997111
different levels of Dll1 expression determine the fate of NPCs through cell-cell interactions, most likely through the Notch-Delta lateral inhibitory signaling pathway
PMID:16495313
In the absence of Dll1, auditory hair cells develop early and in excess, in agreement with the lateral inhibition hypothesis.
GO:0048018 receptor ligand activity
IEA
GO_REF:0000107
ACCEPT
Summary: Receptor ligand activity (ISO/IEA from human DLL1).
Reason: Dll1 binds Notch and activates receptor cleavage and RBP-J-dependent transcription, i.e. it is an activating ligand of the Notch receptor; core MF.
Supporting Evidence:
PMID:10958687
binding of DSL proteins to Notch2 also activated the transcription of reporter genes driven by the RBP-Jkappa-responsive promoter.
GO:0048018 receptor ligand activity
ISO
GO_REF:0000119
ACCEPT
Summary: Receptor ligand activity (ISO/IEA from human DLL1).
Reason: Dll1 binds Notch and activates receptor cleavage and RBP-J-dependent transcription, i.e. it is an activating ligand of the Notch receptor; core MF.
Supporting Evidence:
PMID:10958687
binding of DSL proteins to Notch2 also activated the transcription of reporter genes driven by the RBP-Jkappa-responsive promoter.
GO:0048592 eye morphogenesis
IEA
GO_REF:0000117
MARK AS OVER ANNOTATED
Summary: Broad ARBA machine-learning process term.
Reason: Too vague or not specifically supported for Dll1; adds no informative content.
GO:0048598 embryonic morphogenesis
IEA
GO_REF:0000117
KEEP AS NON CORE
Summary: Broad ARBA developmental process term.
Reason: Generally consistent with Dll1's pleiotropic developmental requirements via Notch signalling, but non-specific.
GO:0048630 skeletal muscle tissue growth
IMP
PMID:22940113
Colonization of the satellite cell niche by skeletal muscle ...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0048631 regulation of skeletal muscle tissue growth
IMP
PMID:17194759
Premature myogenic differentiation and depletion of progenit...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0048633 positive regulation of skeletal muscle tissue growth
IMP
PMID:25220152
Divergent and conserved roles of Dll1 signaling in developme...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0048638 regulation of developmental growth
IEA
GO_REF:0000117
KEEP AS NON CORE
Summary: Broad ARBA developmental process term.
Reason: Generally consistent with Dll1's pleiotropic developmental requirements via Notch signalling, but non-specific.
GO:0048665 neuron fate specification
IDA
PMID:18997111
Selection of differentiating cells by different levels of de...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0048839 inner ear development
IMP
PMID:16495313
Notch ligands with contrasting functions: Jagged1 and Delta1...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0048871 multicellular organismal-level homeostasis
IEA
GO_REF:0000117
MARK AS OVER ANNOTATED
Summary: Broad ARBA machine-learning process term.
Reason: Too vague or not specifically supported for Dll1; adds no informative content.
GO:0050767 regulation of neurogenesis
IMP
PMID:18997111
Selection of differentiating cells by different levels of de...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0050767 regulation of neurogenesis
IMP
PMID:19389377
Dll1 and Dll4 function sequentially in the retina and pV2 do...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0051049 regulation of transport
IEA
GO_REF:0000117
MARK AS OVER ANNOTATED
Summary: Broad ARBA machine-learning process term.
Reason: Too vague or not specifically supported for Dll1; adds no informative content.
GO:0051093 negative regulation of developmental process
IEA
GO_REF:0000117
KEEP AS NON CORE
Summary: Broad ARBA developmental process term.
Reason: Generally consistent with Dll1's pleiotropic developmental requirements via Notch signalling, but non-specific.
GO:0051241 negative regulation of multicellular organismal process
IEA
GO_REF:0000117
MARK AS OVER ANNOTATED
Summary: Broad ARBA machine-learning process term.
Reason: Too vague or not specifically supported for Dll1; adds no informative content.
GO:0051302 regulation of cell division
IMP
PMID:21915337
Delta1 expression, cell cycle exit, and commitment to a spec...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0060041 retina development in camera-type eye
IMP
PMID:19389377
Dll1 and Dll4 function sequentially in the retina and pV2 do...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0060042 retina morphogenesis in camera-type eye
IMP
PMID:19389377
Dll1 and Dll4 function sequentially in the retina and pV2 do...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0060562 epithelial tube morphogenesis
IEA
GO_REF:0000117
KEEP AS NON CORE
Summary: Broad ARBA developmental process term.
Reason: Generally consistent with Dll1's pleiotropic developmental requirements via Notch signalling, but non-specific.
GO:0060853 Notch signaling pathway involved in arterial endothelial cell fate commitment
IMP
PMID:19144989
DLL1-mediated Notch activation regulates endothelial identit...
ACCEPT
Summary: DLL1 activates Notch1 in fetal arterial endothelium to maintain arterial identity.
Reason: Specific Notch signalling process in which Dll1 is the ligand.
Supporting Evidence:
PMID:19144989
DLL1 is an essential Notch ligand in the vascular endothelium of large arteries to activate Notch1 and maintain arterial identity.
GO:0061326 renal tubule development
IEA
GO_REF:0000117
KEEP AS NON CORE
Summary: Broad ARBA developmental process term.
Reason: Generally consistent with Dll1's pleiotropic developmental requirements via Notch signalling, but non-specific.
GO:0070986 left/right axis specification
IMP
PMID:12730124
Notch signaling regulates left-right asymmetry determination...
KEEP AS NON CORE
Summary: Dll1 mutants have left-right asymmetry defects owing to loss of Notch-induced Nodal at the node.
Reason: Specific developmental outcome of Dll1-Notch signalling.
Supporting Evidence:
PMID:12730124
Embryos mutant for the Notch ligand Dll1 or doubly mutant for the Notch1 and Notch2 receptors exhibit multiple defects in left-right asymmetry.
GO:0072006 nephron development
IMP
PMID:23806616
The extracellular domain of Notch2 increases its cell-surfac...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0072014 proximal tubule development
IEP
PMID:15821257
Segmental expression of Notch and Hairy genes in nephrogenes...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0072070 loop of Henle development
IEP
PMID:15821257
Segmental expression of Notch and Hairy genes in nephrogenes...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0072583 clathrin-dependent endocytosis
ISO
GO_REF:0000096
MARK AS OVER ANNOTATED
Summary: Clathrin-dependent endocytosis (ISO from rat / ISS).
Reason: Dll1 is endocytosed as cargo (driven by Mib1 ubiquitination); being internalised does not mean Dll1 performs the endocytic process. The ligand-activation role is captured by Notch signalling terms.
Propagation Review
Root cause: TERM SCOPING PROBLEM
Failure modes: ROLE CONFLATION
Sources checked:
RGD:70949 SUPPORTS SOURCE BUT NOT TARGET
Rat Dll1 source reflects ligand internalisation as cargo; cargo does not execute the endocytic process.
UniProtKB:P97677 SUPPORTS SOURCE BUT NOT TARGET
Same cargo-versus-machinery issue for the ISS source.
GO:0072583 clathrin-dependent endocytosis
ISS
GO_REF:0000024
MARK AS OVER ANNOTATED
Summary: Clathrin-dependent endocytosis (ISO from rat / ISS).
Reason: Dll1 is endocytosed as cargo (driven by Mib1 ubiquitination); being internalised does not mean Dll1 performs the endocytic process. The ligand-activation role is captured by Notch signalling terms.
Propagation Review
Root cause: TERM SCOPING PROBLEM
Failure modes: ROLE CONFLATION
Sources checked:
RGD:70949 SUPPORTS SOURCE BUT NOT TARGET
Rat Dll1 source reflects ligand internalisation as cargo; cargo does not execute the endocytic process.
UniProtKB:P97677 SUPPORTS SOURCE BUT NOT TARGET
Same cargo-versus-machinery issue for the ISS source.
GO:0097009 energy homeostasis
IMP
PMID:19562077
Dll1 haploinsufficiency in adult mice leads to a complex phe...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0097102 endothelial tip cell fate specification
IMP
PMID:22282195
Extrinsic Notch ligand Delta-like 1 regulates tip cell selec...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0097110 scaffold protein binding
IPI
PMID:15908431
MAGI1 recruits Dll1 to cadherin-based adherens junctions and...
KEEP AS NON CORE
Summary: Dll1 binds the scaffold protein MAGI1, which recruits it to adherens junctions.
Reason: Experimentally supported interaction that localises and stabilises Dll1; accessory to its core ligand function.
Supporting Evidence:
PMID:15908431
Dll1 was recruited to these AJs through binding to MAGI1.
GO:0097150 neuronal stem cell population maintenance
IEA
GO_REF:0000107
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0097150 neuronal stem cell population maintenance
IMP
PMID:23695674
Dll1 maintains quiescence of adult neural stem cells and seg...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:0098773 skin epidermis development
IMP
PMID:17960184
Role of the Notch ligand Delta1 in embryonic and adult mouse...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:1900746 regulation of vascular endothelial growth factor signaling pathway
IMP
PMID:19144989
DLL1-mediated Notch activation regulates endothelial identit...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:1903672 positive regulation of sprouting angiogenesis
IMP
PMID:22282195
Extrinsic Notch ligand Delta-like 1 regulates tip cell selec...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.
GO:2000726 negative regulation of cardiac muscle cell differentiation
IMP
PMID:18371447
MicroRNA regulation of cell lineages in mouse and human embr...
KEEP AS NON CORE
Summary: Tissue-specific developmental, differentiation, proliferation or physiological outcome of Dll1 loss or gain of function (neural, retina, cerebellum, inner ear, intestine, skin, muscle, pancreas, kidney, vasculature, immune cells, adult homeostasis).
Reason: Experimentally supported requirements that reflect Dll1's role as the activating Notch ligand in the relevant tissue; pleiotropic consequences rather than distinct functions.

Core Functions

Dll1 is a transmembrane DSL ligand that binds Notch1/Notch2 on adjacent cells and, upon Mib1/Neuralized-dependent ubiquitination and endocytosis, activates Notch proteolysis and RBP-J-dependent transcription in the receiving cell.

Molecular Function:
receptor ligand activity
Cellular Locations:
Supporting Evidence:
  • PMID:10958687
    binding of DSL proteins to Notch2 also activated the transcription of reporter genes driven by the RBP-Jkappa-responsive promoter.
  • PMID:21985982
    lysine 613 (K613) in the cytoplasmic tail of Dll1 is a key residue necessary for transcellular activation of Notch signaling.
  • PMID:18997111
    different levels of Dll1 expression determine the fate of NPCs through cell-cell interactions, most likely through the Notch-Delta lateral inhibitory signaling pathway

Dll1 binds Notch receptors in trans; binding is enhanced by Fringe glycosylation of Notch and depends on ubiquitination-dependent recycling of the ligand.

Molecular Function:
Notch binding
Directly Involved In:
Cellular Locations:
Supporting Evidence:
  • PMID:15574878
    increased Delta1 binding and activation of Notch1 signaling in 293T and NIH 3T3 cells
  • PMID:18676613
    ubiquitination, although not required for endocytosis, is essential for Dll1 recycling and that recycling is required to acquire affinity for the receptor.

References

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Suggested Questions for Experts

Q: Does the gamma-secretase-released Dll1 intracellular domain have a physiological nuclear (bidirectional signalling) function in vivo, justifying a nuclear location annotation?

Suggested Experiments

Experiment: Knock in a Dll1 allele resistant to ADAM10/gamma-secretase processing and assess whether nuclear Dll1-ICD contributes to signal-sending-cell fate in neurogenesis.

Deep Research

Falcon

(Dll1-deep-research-falcon.md)

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πŸ“š Additional Documentation

Notes

(Dll1-notes.md)

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πŸ“„ View Raw YAML

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