| Primary Identifier | IPR037889 | Type | Domain |
| Short Name | PDZRhoGEF_RGS |
| description | The RGS domain is an essential part of the Rho guanine nucleotide exchange factor 11, also known as PDZ-RhoGEF (PDZ:Postsynaptic density 95, Disk large, Zona occludens-1; RhoGEF: Rho guanine nucleotide exchange factor; alias PRG), a member of RhoGEFs subfamily of the RGS protein family. The RhoGEFs are peripheral membrane proteins that regulate essential cellular processes, including cell shape, cell migration, and cell cycle progression, as well as gene transcription by linking signals from heterotrimeric G-alpha12/13 protein-coupled receptors to Rho GTPase activation, leading to various cellular responses, such as actin reorganization and gene expression [, ]. RhoGEFs subfamily includes leukemia-associated RhoGEF protein (LARG), p115RhoGEF, PDZ-RhoGEF and its rat specific splice variant GTRAP48. The RGS domain of RhoGEFs has very little sequence similarity with the canonical RGS domain of the RGS proteins and is often refered to as RH (RGS Homology) domain. In contrast to p115RhoGEF and LARG, PDZ-RhoGEF cannot serve as a GTPase-activating protein (GAP), due to the mutation of sites in the RGS domain region that are crucial for GAP activity []. |
