| Post Translational Modifications | Phosphorylated on tyrosine residues upon EFNA1 stimulation. EPHB2-dependent phosphorylation at Tyr-353 triggers UBE3A-mediated ubiquitination. Ubiquitinated.UBE3A-mediated ubiquitination and degradation by the proteasome promotes EFNB1-dependent synapse formation. |
| Function | Specific GEF for RhoA activation. Does not activate RAC1 or CDC42. Regulates vascular smooth muscle contractility. Negatively regulates excitatory synapse development by suppressing the synapse-promoting activity of EPHB2. |
| Protein Name | Rho Guanine Nucleotide Exchange Factor 15Ephexin-5E5Vsm-Rhogef |
| Database Links | Reactome: R-HSA-193648Reactome: R-HSA-416482Reactome: R-HSA-8980692Reactome: R-HSA-9013148Reactome: R-HSA-9013149 |
| Cellular Localisation | Cell ProjectionDendriteExpressed Exclusively In Dendrites Of The Developing Hippocampus |
| Alternative Protein Names | Rho Guanine Nucleotide Exchange Factor 15 proteinEphexin-5 proteinE5 proteinVsm-Rhogef proteinARHGEF15 proteinKIAA0915 protein |
Information sourced from Uniprot.org