VPS37A

UniProt ID: Q8NEZ2
Organism: Homo sapiens
Review Status: COMPLETE
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Gene Description

VPS37A is a VPS37-family ESCRT-I subunit that complexes with TSG101, VPS28, and MVB12/UBAP-family subunits. It supports ubiquitin-dependent endosomal cargo sorting into multivesicular bodies and has a directly tested role in phagophore closure, where its PUEV-containing N terminus recruits ESCRT machinery for autophagosome completion.

Existing Annotations Review

GO Term Evidence Action Reason
GO:0043162 ubiquitin-dependent protein catabolic process via the multivesicular body sorting pathway
IBA
GO_REF:0000033
ACCEPT
Summary: ubiquitin-dependent protein catabolic process via the multivesicular body sorting pathway is supported as part of the core VPS37A/ESCRT-I endosomal cargo-sorting role.
Reason: VPS37A is required for ESCRT-I-dependent sorting of ubiquitinated endocytic cargos, including EGFR, into MVB/lysosomal routes.
Supporting Evidence:
file:human/VPS37A/VPS37A-uniprot.txt
Required for the sorting of endocytic
file:human/VPS37A/VPS37A-uniprot.txt
ubiquitinated cargos into multivesicular bodies
PMID:15240819
retards epidermal growth factor (EGF) receptor degradation
PMID:15240819
essential for lysosomal sorting of EGF receptors
PMID:21757351
required for sorting EGFR to the MVB
GO:0000813 ESCRT I complex
IBA
GO_REF:0000033
ACCEPT
Summary: ESCRT-I complex membership is the central VPS37A cellular-component annotation.
Reason: VPS37A is the VPS37-family ESCRT-I subunit in TSG101-VPS28-VPS37-MVB12/UBAP variant complexes.
Supporting Evidence:
file:human/VPS37A/VPS37A-uniprot.txt
Component of the ESCRT-I complex
file:human/VPS37A/VPS37A-uniprot.txt
which consists of TSG101, VPS28, a VPS37
file:human/VPS37A/VPS37A-uniprot.txt
Interacts with TSG101, VPS28 and HGS
PMID:15240819
a subunit of mammalian ESCRT-I
PMID:21757351
Mammalian ESCRT-I comprises TSG101, VPS28, VPS37A-D, and MVB12A/B
GO:0006612 protein targeting to membrane
IBA
GO_REF:0000033
MODIFY
Summary: Protein targeting to membrane is too broad for the VPS37A phagophore recruitment role.
Reason: The direct VPS37A evidence concerns ESCRT recruitment to phagophores and autophagosome completion, which is better captured as GO:0000045 autophagosome assembly.
Proposed replacements: autophagosome assembly
Supporting Evidence:
PMID:31519728
the ESCRT-I subunit VPS37A as a critical component for phagophore closure
PMID:31519728
VPS37A localizes on the phagophore
PMID:31519728
required for autophagosome completion but dispensable for ESCRT-I complex formation
PMID:31519728
loss of VPS37A abrogates the phagophore recruitment
PMID:32424346
ESCRT-I helical interface is required for autophagosome closure
GO:0006623 protein targeting to vacuole
IBA
GO_REF:0000033
MODIFY
Summary: Protein targeting to vacuole is too broad for the VPS37A endosomal sorting evidence.
Reason: The supported process is ubiquitin-dependent MVB sorting and lysosomal routing of endocytic cargo, not generic protein targeting to vacuole.
Supporting Evidence:
file:human/VPS37A/VPS37A-uniprot.txt
Required for the sorting of endocytic
file:human/VPS37A/VPS37A-uniprot.txt
ubiquitinated cargos into multivesicular bodies
PMID:15240819
retards epidermal growth factor (EGF) receptor degradation
PMID:15240819
essential for lysosomal sorting of EGF receptors
PMID:21757351
required for sorting EGFR to the MVB
GO:0000813 ESCRT I complex
IEA
GO_REF:0000117
ACCEPT
Summary: ESCRT-I complex membership is the central VPS37A cellular-component annotation.
Reason: VPS37A is the VPS37-family ESCRT-I subunit in TSG101-VPS28-VPS37-MVB12/UBAP variant complexes.
Supporting Evidence:
file:human/VPS37A/VPS37A-uniprot.txt
Component of the ESCRT-I complex
file:human/VPS37A/VPS37A-uniprot.txt
which consists of TSG101, VPS28, a VPS37
file:human/VPS37A/VPS37A-uniprot.txt
Interacts with TSG101, VPS28 and HGS
PMID:15240819
a subunit of mammalian ESCRT-I
PMID:21757351
Mammalian ESCRT-I comprises TSG101, VPS28, VPS37A-D, and MVB12A/B
GO:0005634 nucleus
IEA
GO_REF:0000044
KEEP AS NON CORE
Summary: nucleus is supported as a secondary context but is not the core VPS37A proteostasis function.
Reason: Viral budding and nuclear/nucleoplasm localizations are secondary observations or contexts; the core function is ESCRT-I endosomal sorting and phagophore closure.
Supporting Evidence:
PMID:18005716
plays essential roles in HIV budding and endosomal protein sorting
PMID:20588296
viral budding, cytokinesis and, probably, autophagy
file:human/VPS37A/VPS37A-uniprot.txt
Nucleus
GO:0016236 macroautophagy
IEA
GO_REF:0000117
MODIFY
Summary: Macroautophagy is too broad for the directly tested VPS37A role.
Reason: VPS37A is directly required for phagophore closure/autophagosome completion, so GO:0000045 autophagosome assembly is the more precise term.
Proposed replacements: autophagosome assembly
Supporting Evidence:
PMID:31519728
the ESCRT-I subunit VPS37A as a critical component for phagophore closure
PMID:31519728
VPS37A localizes on the phagophore
PMID:31519728
required for autophagosome completion but dispensable for ESCRT-I complex formation
PMID:31519728
loss of VPS37A abrogates the phagophore recruitment
PMID:32424346
ESCRT-I helical interface is required for autophagosome closure
GO:0031902 late endosome membrane
IEA
GO_REF:0000044
ACCEPT
Summary: late endosome membrane localization is supported and relevant to VPS37A/ESCRT-I function.
Reason: VPS37A is a peripheral late-endosome/endosome-membrane ESCRT-I component and colocalizes with hVps28 on LAMP1-positive endosomes.
Supporting Evidence:
file:human/VPS37A/VPS37A-uniprot.txt
Late endosome membrane
PMID:15240819
colocalizes with hVps28 on LAMP1-positive endosomes
GO:0036258 multivesicular body assembly
IEA
GO_REF:0000117
ACCEPT
Summary: multivesicular body assembly is supported as part of the core VPS37A/ESCRT-I endosomal cargo-sorting role.
Reason: VPS37A is required for ESCRT-I-dependent sorting of ubiquitinated endocytic cargos, including EGFR, into MVB/lysosomal routes.
Supporting Evidence:
file:human/VPS37A/VPS37A-uniprot.txt
Required for the sorting of endocytic
file:human/VPS37A/VPS37A-uniprot.txt
ubiquitinated cargos into multivesicular bodies
PMID:15240819
retards epidermal growth factor (EGF) receptor degradation
PMID:15240819
essential for lysosomal sorting of EGF receptors
PMID:21757351
required for sorting EGFR to the MVB
GO:0039702 viral budding via host ESCRT complex
IEA
GO_REF:0000117
KEEP AS NON CORE
Summary: viral budding via host ESCRT complex is supported as a secondary context but is not the core VPS37A proteostasis function.
Reason: Viral budding and nuclear/nucleoplasm localizations are secondary observations or contexts; the core function is ESCRT-I endosomal sorting and phagophore closure.
Supporting Evidence:
PMID:18005716
plays essential roles in HIV budding and endosomal protein sorting
PMID:20588296
viral budding, cytokinesis and, probably, autophagy
file:human/VPS37A/VPS37A-uniprot.txt
Nucleus
GO:0005515 protein binding
IPI
PMID:25416956
A proteome-scale map of the human interactome network.
MARK AS OVER ANNOTATED
Summary: Protein binding is too generic to represent VPS37A function.
Reason: The informative biology is ESCRT-I complex membership, endosomal MVB sorting, and phagophore-closure recruitment, not generic protein binding from interaction assays.
Supporting Evidence:
file:human/VPS37A/VPS37A-uniprot.txt
Component of the ESCRT-I complex
file:human/VPS37A/VPS37A-uniprot.txt
which consists of TSG101, VPS28, a VPS37
file:human/VPS37A/VPS37A-uniprot.txt
Interacts with TSG101, VPS28 and HGS
PMID:15240819
a subunit of mammalian ESCRT-I
PMID:21757351
Mammalian ESCRT-I comprises TSG101, VPS28, VPS37A-D, and MVB12A/B
file:human/VPS37A/VPS37A-uniprot.txt
Required for the sorting of endocytic
file:human/VPS37A/VPS37A-uniprot.txt
ubiquitinated cargos into multivesicular bodies
PMID:15240819
retards epidermal growth factor (EGF) receptor degradation
PMID:15240819
essential for lysosomal sorting of EGF receptors
PMID:21757351
required for sorting EGFR to the MVB
GO:0005515 protein binding
IPI
PMID:32296183
A reference map of the human binary protein interactome.
MARK AS OVER ANNOTATED
Summary: Protein binding is too generic to represent VPS37A function.
Reason: The informative biology is ESCRT-I complex membership, endosomal MVB sorting, and phagophore-closure recruitment, not generic protein binding from interaction assays.
Supporting Evidence:
file:human/VPS37A/VPS37A-uniprot.txt
Component of the ESCRT-I complex
file:human/VPS37A/VPS37A-uniprot.txt
which consists of TSG101, VPS28, a VPS37
file:human/VPS37A/VPS37A-uniprot.txt
Interacts with TSG101, VPS28 and HGS
PMID:15240819
a subunit of mammalian ESCRT-I
PMID:21757351
Mammalian ESCRT-I comprises TSG101, VPS28, VPS37A-D, and MVB12A/B
file:human/VPS37A/VPS37A-uniprot.txt
Required for the sorting of endocytic
file:human/VPS37A/VPS37A-uniprot.txt
ubiquitinated cargos into multivesicular bodies
PMID:15240819
retards epidermal growth factor (EGF) receptor degradation
PMID:15240819
essential for lysosomal sorting of EGF receptors
PMID:21757351
required for sorting EGFR to the MVB
GO:0005515 protein binding
IPI
PMID:32814053
Interactome Mapping Provides a Network of Neurodegenerative ...
MARK AS OVER ANNOTATED
Summary: Protein binding is too generic to represent VPS37A function.
Reason: The informative biology is ESCRT-I complex membership, endosomal MVB sorting, and phagophore-closure recruitment, not generic protein binding from interaction assays.
Supporting Evidence:
file:human/VPS37A/VPS37A-uniprot.txt
Component of the ESCRT-I complex
file:human/VPS37A/VPS37A-uniprot.txt
which consists of TSG101, VPS28, a VPS37
file:human/VPS37A/VPS37A-uniprot.txt
Interacts with TSG101, VPS28 and HGS
PMID:15240819
a subunit of mammalian ESCRT-I
PMID:21757351
Mammalian ESCRT-I comprises TSG101, VPS28, VPS37A-D, and MVB12A/B
file:human/VPS37A/VPS37A-uniprot.txt
Required for the sorting of endocytic
file:human/VPS37A/VPS37A-uniprot.txt
ubiquitinated cargos into multivesicular bodies
PMID:15240819
retards epidermal growth factor (EGF) receptor degradation
PMID:15240819
essential for lysosomal sorting of EGF receptors
PMID:21757351
required for sorting EGFR to the MVB
GO:0005515 protein binding
IPI
PMID:33961781
Dual proteome-scale networks reveal cell-specific remodeling...
MARK AS OVER ANNOTATED
Summary: Protein binding is too generic to represent VPS37A function.
Reason: The informative biology is ESCRT-I complex membership, endosomal MVB sorting, and phagophore-closure recruitment, not generic protein binding from interaction assays.
Supporting Evidence:
file:human/VPS37A/VPS37A-uniprot.txt
Component of the ESCRT-I complex
file:human/VPS37A/VPS37A-uniprot.txt
which consists of TSG101, VPS28, a VPS37
file:human/VPS37A/VPS37A-uniprot.txt
Interacts with TSG101, VPS28 and HGS
PMID:15240819
a subunit of mammalian ESCRT-I
PMID:21757351
Mammalian ESCRT-I comprises TSG101, VPS28, VPS37A-D, and MVB12A/B
file:human/VPS37A/VPS37A-uniprot.txt
Required for the sorting of endocytic
file:human/VPS37A/VPS37A-uniprot.txt
ubiquitinated cargos into multivesicular bodies
PMID:15240819
retards epidermal growth factor (EGF) receptor degradation
PMID:15240819
essential for lysosomal sorting of EGF receptors
PMID:21757351
required for sorting EGFR to the MVB
GO:0005515 protein binding
IPI
PMID:35271311
OpenCell: Endogenous tagging for the cartography of human ce...
MARK AS OVER ANNOTATED
Summary: Protein binding is too generic to represent VPS37A function.
Reason: The informative biology is ESCRT-I complex membership, endosomal MVB sorting, and phagophore-closure recruitment, not generic protein binding from interaction assays.
Supporting Evidence:
file:human/VPS37A/VPS37A-uniprot.txt
Component of the ESCRT-I complex
file:human/VPS37A/VPS37A-uniprot.txt
which consists of TSG101, VPS28, a VPS37
file:human/VPS37A/VPS37A-uniprot.txt
Interacts with TSG101, VPS28 and HGS
PMID:15240819
a subunit of mammalian ESCRT-I
PMID:21757351
Mammalian ESCRT-I comprises TSG101, VPS28, VPS37A-D, and MVB12A/B
file:human/VPS37A/VPS37A-uniprot.txt
Required for the sorting of endocytic
file:human/VPS37A/VPS37A-uniprot.txt
ubiquitinated cargos into multivesicular bodies
PMID:15240819
retards epidermal growth factor (EGF) receptor degradation
PMID:15240819
essential for lysosomal sorting of EGF receptors
PMID:21757351
required for sorting EGFR to the MVB
GO:0005654 nucleoplasm
IDA
GO_REF:0000052
KEEP AS NON CORE
Summary: nucleoplasm is supported as a secondary context but is not the core VPS37A proteostasis function.
Reason: Viral budding and nuclear/nucleoplasm localizations are secondary observations or contexts; the core function is ESCRT-I endosomal sorting and phagophore closure.
Supporting Evidence:
PMID:18005716
plays essential roles in HIV budding and endosomal protein sorting
PMID:20588296
viral budding, cytokinesis and, probably, autophagy
file:human/VPS37A/VPS37A-uniprot.txt
Nucleus
GO:0010008 endosome membrane
NAS
PMID:32424346
A helical assembly of human ESCRT-I scaffolds reverse-topolo...
ACCEPT
Summary: endosome membrane localization is supported and relevant to VPS37A/ESCRT-I function.
Reason: VPS37A is a peripheral late-endosome/endosome-membrane ESCRT-I component and colocalizes with hVps28 on LAMP1-positive endosomes.
Supporting Evidence:
file:human/VPS37A/VPS37A-uniprot.txt
Late endosome membrane
PMID:15240819
colocalizes with hVps28 on LAMP1-positive endosomes
GO:0036258 multivesicular body assembly
NAS
PMID:32424346
A helical assembly of human ESCRT-I scaffolds reverse-topolo...
ACCEPT
Summary: multivesicular body assembly is supported as part of the core VPS37A/ESCRT-I endosomal cargo-sorting role.
Reason: VPS37A is required for ESCRT-I-dependent sorting of ubiquitinated endocytic cargos, including EGFR, into MVB/lysosomal routes.
Supporting Evidence:
file:human/VPS37A/VPS37A-uniprot.txt
Required for the sorting of endocytic
file:human/VPS37A/VPS37A-uniprot.txt
ubiquitinated cargos into multivesicular bodies
PMID:15240819
retards epidermal growth factor (EGF) receptor degradation
PMID:15240819
essential for lysosomal sorting of EGF receptors
PMID:21757351
required for sorting EGFR to the MVB
GO:0043328 protein transport to vacuole involved in ubiquitin-dependent protein catabolic process via the multivesicular body sorting pathway
NAS
PMID:32424346
A helical assembly of human ESCRT-I scaffolds reverse-topolo...
ACCEPT
Summary: protein transport to vacuole involved in ubiquitin-dependent protein catabolic process via the multivesicular body sorting pathway is supported as part of the core VPS37A/ESCRT-I endosomal cargo-sorting role.
Reason: VPS37A is required for ESCRT-I-dependent sorting of ubiquitinated endocytic cargos, including EGFR, into MVB/lysosomal routes.
Supporting Evidence:
file:human/VPS37A/VPS37A-uniprot.txt
Required for the sorting of endocytic
file:human/VPS37A/VPS37A-uniprot.txt
ubiquitinated cargos into multivesicular bodies
PMID:15240819
retards epidermal growth factor (EGF) receptor degradation
PMID:15240819
essential for lysosomal sorting of EGF receptors
PMID:21757351
required for sorting EGFR to the MVB
GO:0090148 membrane fission
NAS
PMID:32424346
A helical assembly of human ESCRT-I scaffolds reverse-topolo...
ACCEPT
Summary: Membrane fission is supported for ESCRT-I reverse-topology membrane remodeling.
Reason: VPS37A is a core ESCRT-I component; ESCRT-I scaffolds upstream ESCRT recruitment for reverse-topology membrane remodeling, including phagophore closure.
Supporting Evidence:
PMID:20588296
ESCRT-I and ESCRT-II direct membrane budding away from the cytosol
PMID:31519728
VPS37A coordinates the recruitment of a unique set of ESCRT machinery components for phagophore closure
PMID:32424346
A helical assembly of human ESCRT-I scaffolds reverse-topology membrane scission
GO:0000813 ESCRT I complex
IPI
PMID:18005716
Identification of human MVB12 proteins as ESCRT-I subunits t...
ACCEPT
Summary: ESCRT-I complex membership is the central VPS37A cellular-component annotation.
Reason: VPS37A is the VPS37-family ESCRT-I subunit in TSG101-VPS28-VPS37-MVB12/UBAP variant complexes.
Supporting Evidence:
file:human/VPS37A/VPS37A-uniprot.txt
Component of the ESCRT-I complex
file:human/VPS37A/VPS37A-uniprot.txt
which consists of TSG101, VPS28, a VPS37
file:human/VPS37A/VPS37A-uniprot.txt
Interacts with TSG101, VPS28 and HGS
PMID:15240819
a subunit of mammalian ESCRT-I
PMID:21757351
Mammalian ESCRT-I comprises TSG101, VPS28, VPS37A-D, and MVB12A/B
GO:0000813 ESCRT I complex
IPI
PMID:21757351
UBAP1 is a component of an endosome-specific ESCRT-I complex...
ACCEPT
Summary: ESCRT-I complex membership is the central VPS37A cellular-component annotation.
Reason: VPS37A is the VPS37-family ESCRT-I subunit in TSG101-VPS28-VPS37-MVB12/UBAP variant complexes.
Supporting Evidence:
file:human/VPS37A/VPS37A-uniprot.txt
Component of the ESCRT-I complex
file:human/VPS37A/VPS37A-uniprot.txt
which consists of TSG101, VPS28, a VPS37
file:human/VPS37A/VPS37A-uniprot.txt
Interacts with TSG101, VPS28 and HGS
PMID:15240819
a subunit of mammalian ESCRT-I
PMID:21757351
Mammalian ESCRT-I comprises TSG101, VPS28, VPS37A-D, and MVB12A/B
GO:0016236 macroautophagy
TAS
PMID:20588296
Membrane budding and scission by the ESCRT machinery: it's a...
MODIFY
Summary: Macroautophagy is too broad for the directly tested VPS37A role.
Reason: VPS37A is directly required for phagophore closure/autophagosome completion, so GO:0000045 autophagosome assembly is the more precise term.
Proposed replacements: autophagosome assembly
Supporting Evidence:
PMID:31519728
the ESCRT-I subunit VPS37A as a critical component for phagophore closure
PMID:31519728
VPS37A localizes on the phagophore
PMID:31519728
required for autophagosome completion but dispensable for ESCRT-I complex formation
PMID:31519728
loss of VPS37A abrogates the phagophore recruitment
PMID:32424346
ESCRT-I helical interface is required for autophagosome closure
GO:0000813 ESCRT I complex
TAS
PMID:20588296
Membrane budding and scission by the ESCRT machinery: it's a...
ACCEPT
Summary: ESCRT-I complex membership is the central VPS37A cellular-component annotation.
Reason: VPS37A is the VPS37-family ESCRT-I subunit in TSG101-VPS28-VPS37-MVB12/UBAP variant complexes.
Supporting Evidence:
file:human/VPS37A/VPS37A-uniprot.txt
Component of the ESCRT-I complex
file:human/VPS37A/VPS37A-uniprot.txt
which consists of TSG101, VPS28, a VPS37
file:human/VPS37A/VPS37A-uniprot.txt
Interacts with TSG101, VPS28 and HGS
PMID:15240819
a subunit of mammalian ESCRT-I
PMID:21757351
Mammalian ESCRT-I comprises TSG101, VPS28, VPS37A-D, and MVB12A/B
GO:0036258 multivesicular body assembly
TAS
PMID:20588296
Membrane budding and scission by the ESCRT machinery: it's a...
ACCEPT
Summary: multivesicular body assembly is supported as part of the core VPS37A/ESCRT-I endosomal cargo-sorting role.
Reason: VPS37A is required for ESCRT-I-dependent sorting of ubiquitinated endocytic cargos, including EGFR, into MVB/lysosomal routes.
Supporting Evidence:
file:human/VPS37A/VPS37A-uniprot.txt
Required for the sorting of endocytic
file:human/VPS37A/VPS37A-uniprot.txt
ubiquitinated cargos into multivesicular bodies
PMID:15240819
retards epidermal growth factor (EGF) receptor degradation
PMID:15240819
essential for lysosomal sorting of EGF receptors
PMID:21757351
required for sorting EGFR to the MVB
GO:0039702 viral budding via host ESCRT complex
TAS
PMID:20588296
Membrane budding and scission by the ESCRT machinery: it's a...
KEEP AS NON CORE
Summary: viral budding via host ESCRT complex is supported as a secondary context but is not the core VPS37A proteostasis function.
Reason: Viral budding and nuclear/nucleoplasm localizations are secondary observations or contexts; the core function is ESCRT-I endosomal sorting and phagophore closure.
Supporting Evidence:
PMID:18005716
plays essential roles in HIV budding and endosomal protein sorting
PMID:20588296
viral budding, cytokinesis and, probably, autophagy
file:human/VPS37A/VPS37A-uniprot.txt
Nucleus
GO:0000813 ESCRT I complex
IDA
PMID:18005716
Identification of human MVB12 proteins as ESCRT-I subunits t...
ACCEPT
Summary: ESCRT-I complex membership is the central VPS37A cellular-component annotation.
Reason: VPS37A is the VPS37-family ESCRT-I subunit in TSG101-VPS28-VPS37-MVB12/UBAP variant complexes.
Supporting Evidence:
file:human/VPS37A/VPS37A-uniprot.txt
Component of the ESCRT-I complex
file:human/VPS37A/VPS37A-uniprot.txt
which consists of TSG101, VPS28, a VPS37
file:human/VPS37A/VPS37A-uniprot.txt
Interacts with TSG101, VPS28 and HGS
PMID:15240819
a subunit of mammalian ESCRT-I
PMID:21757351
Mammalian ESCRT-I comprises TSG101, VPS28, VPS37A-D, and MVB12A/B
GO:0000813 ESCRT I complex
IDA
PMID:20654576
Distinct functions of human MVB12A and MVB12B in the ESCRT-I...
ACCEPT
Summary: ESCRT-I complex membership is the central VPS37A cellular-component annotation.
Reason: VPS37A is the VPS37-family ESCRT-I subunit in TSG101-VPS28-VPS37-MVB12/UBAP variant complexes.
Supporting Evidence:
file:human/VPS37A/VPS37A-uniprot.txt
Component of the ESCRT-I complex
file:human/VPS37A/VPS37A-uniprot.txt
which consists of TSG101, VPS28, a VPS37
file:human/VPS37A/VPS37A-uniprot.txt
Interacts with TSG101, VPS28 and HGS
PMID:15240819
a subunit of mammalian ESCRT-I
PMID:21757351
Mammalian ESCRT-I comprises TSG101, VPS28, VPS37A-D, and MVB12A/B
GO:0043162 ubiquitin-dependent protein catabolic process via the multivesicular body sorting pathway
IC
PMID:20654576
Distinct functions of human MVB12A and MVB12B in the ESCRT-I...
ACCEPT
Summary: ubiquitin-dependent protein catabolic process via the multivesicular body sorting pathway is supported as part of the core VPS37A/ESCRT-I endosomal cargo-sorting role.
Reason: VPS37A is required for ESCRT-I-dependent sorting of ubiquitinated endocytic cargos, including EGFR, into MVB/lysosomal routes.
Supporting Evidence:
file:human/VPS37A/VPS37A-uniprot.txt
Required for the sorting of endocytic
file:human/VPS37A/VPS37A-uniprot.txt
ubiquitinated cargos into multivesicular bodies
PMID:15240819
retards epidermal growth factor (EGF) receptor degradation
PMID:15240819
essential for lysosomal sorting of EGF receptors
PMID:21757351
required for sorting EGFR to the MVB
GO:0000813 ESCRT I complex
IDA
PMID:21757351
UBAP1 is a component of an endosome-specific ESCRT-I complex...
ACCEPT
Summary: ESCRT-I complex membership is the central VPS37A cellular-component annotation.
Reason: VPS37A is the VPS37-family ESCRT-I subunit in TSG101-VPS28-VPS37-MVB12/UBAP variant complexes.
Supporting Evidence:
file:human/VPS37A/VPS37A-uniprot.txt
Component of the ESCRT-I complex
file:human/VPS37A/VPS37A-uniprot.txt
which consists of TSG101, VPS28, a VPS37
file:human/VPS37A/VPS37A-uniprot.txt
Interacts with TSG101, VPS28 and HGS
PMID:15240819
a subunit of mammalian ESCRT-I
PMID:21757351
Mammalian ESCRT-I comprises TSG101, VPS28, VPS37A-D, and MVB12A/B
GO:0043162 ubiquitin-dependent protein catabolic process via the multivesicular body sorting pathway
IMP
PMID:21757351
UBAP1 is a component of an endosome-specific ESCRT-I complex...
ACCEPT
Summary: ubiquitin-dependent protein catabolic process via the multivesicular body sorting pathway is supported as part of the core VPS37A/ESCRT-I endosomal cargo-sorting role.
Reason: VPS37A is required for ESCRT-I-dependent sorting of ubiquitinated endocytic cargos, including EGFR, into MVB/lysosomal routes.
Supporting Evidence:
file:human/VPS37A/VPS37A-uniprot.txt
Required for the sorting of endocytic
file:human/VPS37A/VPS37A-uniprot.txt
ubiquitinated cargos into multivesicular bodies
PMID:15240819
retards epidermal growth factor (EGF) receptor degradation
PMID:15240819
essential for lysosomal sorting of EGF receptors
PMID:21757351
required for sorting EGFR to the MVB
GO:0010008 endosome membrane
TAS
Reactome:R-HSA-184269
ACCEPT
Summary: endosome membrane localization is supported and relevant to VPS37A/ESCRT-I function.
Reason: VPS37A is a peripheral late-endosome/endosome-membrane ESCRT-I component and colocalizes with hVps28 on LAMP1-positive endosomes.
Supporting Evidence:
file:human/VPS37A/VPS37A-uniprot.txt
Late endosome membrane
PMID:15240819
colocalizes with hVps28 on LAMP1-positive endosomes
GO:0010008 endosome membrane
TAS
Reactome:R-HSA-3149434
ACCEPT
Summary: endosome membrane localization is supported and relevant to VPS37A/ESCRT-I function.
Reason: VPS37A is a peripheral late-endosome/endosome-membrane ESCRT-I component and colocalizes with hVps28 on LAMP1-positive endosomes.
Supporting Evidence:
file:human/VPS37A/VPS37A-uniprot.txt
Late endosome membrane
PMID:15240819
colocalizes with hVps28 on LAMP1-positive endosomes
GO:0010008 endosome membrane
TAS
Reactome:R-HSA-3159232
ACCEPT
Summary: endosome membrane localization is supported and relevant to VPS37A/ESCRT-I function.
Reason: VPS37A is a peripheral late-endosome/endosome-membrane ESCRT-I component and colocalizes with hVps28 on LAMP1-positive endosomes.
Supporting Evidence:
file:human/VPS37A/VPS37A-uniprot.txt
Late endosome membrane
PMID:15240819
colocalizes with hVps28 on LAMP1-positive endosomes
GO:0010008 endosome membrane
TAS
Reactome:R-HSA-917696
ACCEPT
Summary: endosome membrane localization is supported and relevant to VPS37A/ESCRT-I function.
Reason: VPS37A is a peripheral late-endosome/endosome-membrane ESCRT-I component and colocalizes with hVps28 on LAMP1-positive endosomes.
Supporting Evidence:
file:human/VPS37A/VPS37A-uniprot.txt
Late endosome membrane
PMID:15240819
colocalizes with hVps28 on LAMP1-positive endosomes
GO:0010008 endosome membrane
TAS
Reactome:R-HSA-917730
ACCEPT
Summary: endosome membrane localization is supported and relevant to VPS37A/ESCRT-I function.
Reason: VPS37A is a peripheral late-endosome/endosome-membrane ESCRT-I component and colocalizes with hVps28 on LAMP1-positive endosomes.
Supporting Evidence:
file:human/VPS37A/VPS37A-uniprot.txt
Late endosome membrane
PMID:15240819
colocalizes with hVps28 on LAMP1-positive endosomes
GO:0000045 autophagosome assembly
IMP
PMID:31519728
VPS37A directs ESCRT recruitment for phagophore closure.
NEW
Summary: VPS37A should be annotated to autophagosome assembly for its direct phagophore-closure role.
Reason: VPS37A is directly identified as an ESCRT-I component required for phagophore closure/autophagosome completion, and loss of VPS37A blocks recruitment of VPS28 and CHMP2A.
Supporting Evidence:
PMID:31519728
the ESCRT-I subunit VPS37A as a critical component for phagophore closure
PMID:31519728
VPS37A localizes on the phagophore
PMID:31519728
required for autophagosome completion but dispensable for ESCRT-I complex formation
PMID:31519728
loss of VPS37A abrogates the phagophore recruitment
PMID:32424346
ESCRT-I helical interface is required for autophagosome closure

Core Functions

VPS37A is an ESCRT-I subunit that organizes endosomal MVB cargo sorting and, through its PUEV-containing phagophore-targeting function, coordinates recruitment of VPS28 and ESCRT-III machinery for autophagosome completion.

Supporting Evidence:
  • file:human/VPS37A/VPS37A-uniprot.txt
    Component of the ESCRT-I complex
  • file:human/VPS37A/VPS37A-uniprot.txt
    which consists of TSG101, VPS28, a VPS37
  • file:human/VPS37A/VPS37A-uniprot.txt
    Interacts with TSG101, VPS28 and HGS
  • PMID:15240819
    a subunit of mammalian ESCRT-I
  • PMID:21757351
    Mammalian ESCRT-I comprises TSG101, VPS28, VPS37A-D, and MVB12A/B
  • file:human/VPS37A/VPS37A-uniprot.txt
    Required for the sorting of endocytic
  • file:human/VPS37A/VPS37A-uniprot.txt
    ubiquitinated cargos into multivesicular bodies
  • PMID:15240819
    retards epidermal growth factor (EGF) receptor degradation
  • PMID:15240819
    essential for lysosomal sorting of EGF receptors
  • PMID:21757351
    required for sorting EGFR to the MVB
  • file:human/VPS37A/VPS37A-uniprot.txt
    Late endosome membrane
  • PMID:15240819
    colocalizes with hVps28 on LAMP1-positive endosomes
  • PMID:31519728
    the ESCRT-I subunit VPS37A as a critical component for phagophore closure
  • PMID:31519728
    VPS37A localizes on the phagophore
  • PMID:31519728
    required for autophagosome completion but dispensable for ESCRT-I complex formation
  • PMID:31519728
    loss of VPS37A abrogates the phagophore recruitment
  • PMID:32424346
    ESCRT-I helical interface is required for autophagosome closure

References

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Suggested Questions for Experts

Q: Should VPS37A macroautophagy/protein-targeting annotations be replaced by GO:0000045 autophagosome assembly to capture phagophore closure?

Suggested experts: GO autophagy editors, GO ESCRT curators

Q: Should generic VPS37A protein-binding rows be retired in favor of ESCRT-I complex membership and specific endosomal/autophagy process terms?

Suggested experts: GO molecular function editors, UniProt curators

Suggested Experiments

Experiment: Use endogenous VPS37A knockout/rescue with PUEV-containing and PUEV-lacking isoforms, then assay HT-LC3 closure, VPS28/CHMP2A recruitment, and EGFR degradation in parallel.

Hypothesis: PUEV-containing VPS37A isoforms are specifically required for phagophore closure, while the ESCRT-I Mod(r) assembly domain remains sufficient for EGFR MVB sorting.

Type: VPS37A isoform and PUEV-domain rescue

πŸ“š Additional Documentation

Notes

(VPS37A-notes.md)

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Pn Notes

(VPS37A-pn-notes.md)

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πŸ“„ View Raw YAML

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