| Name | Rho guanine nucleotide exchange factor 15 |
| Description | 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. |
| UniProt ID | O94989 |
| Gene | ARHGEF15 |