Guanine nucleotide-binding proteins are a family of heterotrimeric proteins that couple cell surface, 7-transmembrane domain receptors to intracellular signaling pathways. Receptor activation catalyzes the exchange of GTP for GDP bound to the inactive G protein alpha subunit resulting in a conformational change and dissociation of the complex. The G protein alpha and beta-gamma subunits are capable of regulating various cellular effectors. Activation is terminated by a GTPase intrinsic to the G-alpha subunit. G-alpha-q is the alpha subunit of one of the heterotrimeric GTP-binding proteins that mediates stimulation of phospholipase C-beta.
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Protein Aliases: G alpha q; guanine nucleotide binding protein (G protein), q polypeptide; Guanine nucleotide-binding protein alpha-q; Guanine nucleotide-binding protein G(q) subunit alpha
Gene Aliases: 1110005L02Rik; 6230401I02Rik; AA408290; AW060788; CMC1; Dsk1; Dsk10; G-ALPHA-q; Galphaq; GAQ; GNAQ; Gq; GqI; SWS