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 belongs to a family of cytoplasmic proteins that activate the Ras-like family of Rho proteins by exchanging bound GDP for GTP. It may form a complex with G proteins and stimulate Rho-dependent signals. This protein is activated by PI3-kinase. Mutations in this gene can cause X-chromosomal non-specific mental retardation.
ARHGEF6; Rac/Cdc42 guanine nucleotide exchange factor (GEF) 6; mental retardation, X linked 46 , MRX46; rho guanine nucleotide exchange factor 6; alpha PIX; alphaPIX; Cool 2; Cool2; KIAA0006; PAK interacting exchange factor; alpha; Rac/Cdc42 guanine exchange factor (GEF) 6; Mental retardation, X linked 46; MRX46; PAK interacting exchange factor alpha; PIXA; Rac/cdc42 guanine nucleotide exchange factor 6; PAK-interacting exchange factor alpha; PAK-interacting exchange factor, alpha; Cool-2; alpha-PIX