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Details on Person UniProt:Q9Y587 AP4S1

Class:IdReferenceGeneProduct:49334
_chainChangeLogchain:1-144 added on Fri February 6 2015
_displayNameUniProt:Q9Y587 AP4S1
_timestamp2024-11-03 19:35:06
chainchain:1-144
checksum0B620AFBB3B7F8A1
commentFUNCTION Component of the adaptor protein complex 4 (AP-4). Adaptor protein complexes are vesicle coat components involved both in vesicle formation and cargo selection. They control the vesicular transport of proteins in different trafficking pathways (PubMed:10066790, PubMed:10436028). AP-4 forms a non clathrin-associated coat on vesicles departing the trans-Golgi network (TGN) and may be involved in the targeting of proteins from the trans-Golgi network (TGN) to the endosomal-lysosomal system. It is also involved in protein sorting to the basolateral membrane in epithelial cells and the proper asymmetric localization of somatodendritic proteins in neurons. AP-4 is involved in the recognition and binding of tyrosine-based sorting signals found in the cytoplasmic part of cargos, but may also recognize other types of sorting signal (Probable).SUBUNIT Adaptor protein complex 4 (AP-4) is a heterotetramer composed of two large adaptins (epsilon-type subunit AP4E1 and beta-type subunit AP4B1), a medium adaptin (mu-type subunit AP4M1) and a small adaptin (sigma-type AP4S1).SUBCELLULAR LOCATION Widely expressed.DISEASE The disease is caused by variants affecting the gene represented in this entry.SIMILARITY Belongs to the adaptor complexes small subunit family.
descriptionrecommendedName: fullName evidence="7"AP-4 complex subunit sigma-1 alternativeName: AP-4 adaptor complex subunit sigma-1 alternativeName: Adaptor-related protein complex 4 subunit sigma-1 alternativeName: Sigma-1 subunit of AP-4 alternativeName: Sigma-4-adaptin shortName: Sigma4-adaptin
geneNameAP4S1
identifierQ9Y587
isSequenceChangedFALSE
keywordAlternative splicing
Golgi apparatus
Hereditary spastic paraplegia
Membrane
Neurodegeneration
Protein transport
Proteomics identification
Reference proteome
Transport
modified[InstanceEdit:9836292] Weiser, Joel, 2023-05-25
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9926675] Weiser, Joel, 2024-11-03
nameAP4S1
referenceDatabase[ReferenceDatabase:2] UniProt
referenceGene[ReferenceDNASequence:8998167] ENSEMBL:ENSG00000100478 AP4S1 [Homo sapiens]
secondaryIdentifierAP4S1_HUMAN
G3V2N8
Q6IAQ4
Q86U36
Q9BVE7
sequenceLength144
species[Species:48887] Homo sapiens
(isoformParent)[ReferenceIsoform:8977289] UniProt:Q9Y587-1 AP4S1 [Homo sapiens]
[ReferenceIsoform:8977290] UniProt:Q9Y587-2 AP4S1 [Homo sapiens]
[ReferenceIsoform:8977291] UniProt:Q9Y587-3 AP4S1 [Homo sapiens]
[ReferenceIsoform:8977292] UniProt:Q9Y587-4 AP4S1 [Homo sapiens]
(referenceEntity)[EntityWithAccessionedSequence:5215967] AP4S1 [trans-Golgi network membrane] [Homo sapiens]
[EntityWithAccessionedSequence:5229155] AP4S1 [endosome lumen] [Homo sapiens]
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No pathways have been reviewed or authored by UniProt:Q9Y587 AP4S1 (49334)