| Function | Signal transducer in the Ras-MAPK signaling pathway that regulates cell proliferation and survival. Core component of the SHOC2-MRAS-PP1c (SMP) holophosphatase complex that regulates the MAPK pathway activation. The formation of the SMP complex only occurs when MRAS is GTP-bound. MRAS has low intrinsic GTPase activity and may require additional factors for activation. The SMP complex specifically dephosphorylates the inhibitory phosphorylation at 'Ser-259' of RAF1 kinase, 'Ser-365' of BRAF kinase and 'Ser-214' of ARAF kinase, stimulating their kinase activities. |
| Protein Name | Ras-Related Protein M-RasRas-Related Protein R-Ras3 |
| Database Links | Reactome: R-HSA-5673000Reactome: R-HSA-9726840Reactome: R-HSA-9726842 |
| Cellular Localisation | Cell MembraneLipid-AnchorCytoplasmic Side |
| Alternative Protein Names | Ras-Related Protein M-Ras proteinRas-Related Protein R-Ras3 proteinMRAS proteinRRAS3 protein |
Information sourced from Uniprot.org