ARHGEF1 Antibody – Rabbit Polyclonal

Rho GTPases play a fundamental role in numerous cellular processes that are initiated by extracellular stimuli that work through G protein coupled receptors. The encoded protein may form complex with G proteins and stimulate Rho-dependent signals. Multiple alternatively spliced transcript variants have been found for this gene, but the full-length nature of some variants has not been defined. [provided by RefSeq, Jul 2008]

ARHGEF1: Seems to play a role in the regulation of RhoA GTPase by guanine nucleotide-binding alpha-12 (GNA12) and alpha-13 (GNA13) subunits. Acts as GTPase-activating protein (GAP) for GNA12 and GNA13, and as guanine nucleotide exchange factor (GEF) for RhoA GTPase. Activated G alpha 13/GNA13 stimulates the RhoGEF activity through interaction with the RGS-like domain. This GEF activity is inhibited by binding to activated GNA12. Mediates angiotensin-2- induced RhoA activation. Interacts with RHOA, GNA12 and GNA13. Homooligomerizes through the coiled coil region. May interact with CCPG1. Interacts with CTNNAL1. Ubiquitously expressed. 3 isoforms of the human protein are produced by alternative splicing.

Protein type: GEFs; GEFs, Rac/Rho; Motility/polarity/chemotaxis

Chromosomal Location of Human Ortholog: 19q13.13

Cellular Component: cytoplasm; cytosol; plasma membrane

Molecular Function: protein binding; Rho guanyl-nucleotide exchange factor activity

Biological Process: cell proliferation; negative regulation of axonogenesis; Rho protein signal transduction