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Details on Person UniProt:P59998 ARPC4

Class:IdReferenceGeneProduct:85219
_chainChangeLoginitiator methionine:1 added on Fri February 6 2015;chain:2-168 added on Fri February 6 2015;initiator methionine:1 for 85219 removed on Fri Nov 03 2023;initiator methionine: for 85219 added on Fri Nov 03 2023;initiator methionine: for 85219 removed on Fri Aug 15 2025;initiator methionine:1 for 85219 added on Fri Aug 15 2025
_displayNameUniProt:P59998 ARPC4
_timestamp2025-08-15 21:51:10
chaininitiator methionine:1
chain:2-168
checksum273CCB230AC703DF
commentFUNCTION Actin-binding component of the Arp2/3 complex, a multiprotein complex that mediates actin polymerization upon stimulation by nucleation-promoting factor (NPF) (PubMed:9230079). The Arp2/3 complex mediates the formation of branched actin networks in the cytoplasm, providing the force for cell motility (PubMed:9230079). In addition to its role in the cytoplasmic cytoskeleton, the Arp2/3 complex also promotes actin polymerization in the nucleus, thereby regulating gene transcription and repair of damaged DNA (PubMed:29925947). The Arp2/3 complex promotes homologous recombination (HR) repair in response to DNA damage by promoting nuclear actin polymerization, leading to drive motility of double-strand breaks (DSBs) (PubMed:29925947).SUBUNIT Component of the Arp2/3 complex composed of ACTR2/ARP2, ACTR3/ARP3, ARPC1B/p41-ARC, ARPC2/p34-ARC, ARPC3/p21-ARC, ARPC4/p20-ARC and ARPC5/p16-ARC.INTERACTION The disease is caused by variants affecting the gene represented in this entry.SIMILARITY Belongs to the ARPC4 family.SEQUENCE CAUTION Truncated N-terminus.
descriptionrecommendedName: Actin-related protein 2/3 complex subunit 4 alternativeName: Arp2/3 complex 20 kDa subunit shortName: p20-ARC
geneNameARPC4
ARC20
identifierP59998
isSequenceChangedFALSE
keyword3D-structure
Acetylation
Actin-binding
Alternative splicing
Cell projection
Cytoplasm
Cytoskeleton
Direct protein sequencing
Disease variant
Intellectual disability
Nucleus
Proteomics identification
Reference proteome
modified[InstanceEdit:9836292] Weiser, Joel, 2023-05-25
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9926675] Weiser, Joel, 2024-11-03
[InstanceEdit:9963647] Weiser, Joel, 2025-08-15
nameARPC4
referenceDatabase[ReferenceDatabase:2] UniProt
referenceGene[ReferenceDNASequence:8997021] ENSEMBL:ENSG00000241553 ARPC4 [Homo sapiens]
secondaryIdentifierARPC4_HUMAN
C9JWM7
E7ETI0
F6TTL5
O15509
Q6P0W5
Q96QJ3
sequenceLength168
species[Species:48887] Homo sapiens
(isoformParent)[ReferenceIsoform:8972288] UniProt:P59998-1 ARPC4 [Homo sapiens]
[ReferenceIsoform:8972289] UniProt:P59998-2 ARPC4 [Homo sapiens]
[ReferenceIsoform:8972290] UniProt:P59998-3 ARPC4 [Homo sapiens]
[ReferenceIsoform:8972291] UniProt:P59998-4 ARPC4 [Homo sapiens]
(referenceEntity)[EntityWithAccessionedSequence:200813] ARPC4 [cytosol] [Homo sapiens]
[EntityWithAccessionedSequence:202988] ARPC4 [plasma membrane] [Homo sapiens]
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No pathways have been reviewed or authored by UniProt:P59998 ARPC4 (85219)