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- Table of Contents
Facts about Son of sevenless homolog 1.
Promotes the exchange of Ras-bound GDP by GTP (PubMed:8493579).
Probably by promoting Ras activation, modulates phosphorylation of MAP kinase MAPK3 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). .
| Human | |
|---|---|
| Gene Name: | SOS1 |
| Uniprot: | Q07889 |
| Entrez: | 6654 |

| Belongs to: |
|---|
| No superfamily |

GF1GGF1; GINGF; guanine nucleotide exchange factor; HGFhereditary, 1; NS4; son of sevenless homolog 1 (Drosophila); son of sevenless homolog 1; SOS-1
Mass (kDA):
152.464 kDA

| Human | |
|---|---|
| Location: | 2p22.1 |
| Sequence: | 2; NC_000002.12 (38981549..39124959, complement) |
Expressed in gingival tissues.





PMID: 8493579 by Chardin P., et al. Human Sos1: a guanine nucleotide exchange factor for Ras that binds to GRB2.
PMID: 7664271 by Pandey P., et al. Association of the DF3/MUC1 breast cancer antigen with Grb2 and the Sos/Ras exchange protein.