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Details on Person UniProt:Q07889 SOS1

Class:IdReferenceGeneProduct:64848
_chainChangeLogchain:1-1333 added on Fri February 6 2015
_displayNameUniProt:Q07889 SOS1
_timestamp2025-05-21 21:39:37
chainchain:1-1333
checksumC6B99CCA11A8DE45
commentFUNCTION Promotes the exchange of Ras-bound GDP by GTP (PubMed:8493579). Probably by promoting Ras activation, regulates phosphorylation of MAP kinase MAPK3/ERK1 in response to EGF (PubMed:17339331). Catalytic component of a trimeric complex that participates in transduction of signals from Ras to Rac by promoting the Rac-specific guanine nucleotide exchange factor (GEF) activity (By similarity).SUBUNIT Interacts (via C-terminus) with GRB2 (via SH3 domain) (PubMed:7664271, PubMed:8493579). Forms a complex with phosphorylated MUC1 and GRB2 (via its SH3 domains) (PubMed:7664271). Interacts with phosphorylated LAT2 (PubMed:12486104). Interacts with NCK1 and NCK2 (PubMed:10026169). Part of a complex consisting of ABI1, EPS8 and SOS1 (By similarity). Interacts (Ser-1134 and Ser-1161 phosphorylated form) with YWHAB and YWHAE (PubMed:22827337).INTERACTION Expressed in gingival tissues.PTM Phosphorylation at Ser-1134 and Ser-1161 by RPS6KA3 create YWHAB and YWHAE binding sites and which contribute to the negative regulation of EGF-induced MAPK1/3 phosphorylation.DISEASE The disease is caused by variants affecting the gene represented in this entry.DISEASE The disease is caused by variants affecting the gene represented in this entry.ONLINE INFORMATION Son of sevenless entry
descriptionrecommendedName: Son of sevenless homolog 1 shortName: SOS-1
geneNameSOS1
identifierQ07889
isSequenceChangedFALSE
keyword3D-structure
Alternative splicing
Disease variant
Guanine-nucleotide releasing factor
Phosphoprotein
Proteomics identification
Reference proteome
modified[InstanceEdit:9836292] Weiser, Joel, 2023-05-25
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9917590] Weiser, Joel, 2024-08-09
[InstanceEdit:9926675] Weiser, Joel, 2024-11-03
[InstanceEdit:9948485] Weiser, Joel, 2025-05-21
nameSOS1
referenceDatabase[ReferenceDatabase:2] UniProt
referenceGene[ReferenceDNASequence:8998602] ENSEMBL:ENSG00000115904 SOS1 [Homo sapiens]
secondaryIdentifierSOS1_HUMAN
A8K2G3
B4DXG2
sequenceLength1333
species[Species:48887] Homo sapiens
(isoformParent)[ReferenceIsoform:8974491] UniProt:Q07889-1 SOS1 [Homo sapiens]
[ReferenceIsoform:8974492] UniProt:Q07889-2 SOS1 [Homo sapiens]
(referenceEntity)[EntityWithAccessionedSequence:64847] SOS1 [cytosol] [Homo sapiens]
[EntityWithAccessionedSequence:109821] p-4S-SOS1 [cytosol] [Homo sapiens]
[EntityWithAccessionedSequence:983559] SOS1 [plasma membrane] [Homo sapiens]
(referenceSequence)[ModifiedResidue:109819] O-phospho-L-serine at 1132
[ModifiedResidue:109820] O-phospho-L-serine at 1167
[ModifiedResidue:112323] O-phospho-L-serine at 1193
[ModifiedResidue:112326] O-phospho-L-serine at 1178
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No pathways have been reviewed or authored by UniProt:Q07889 SOS1 (64848)