G_{α q/11} (C-19) Antibody: sc-392

G_{α q/11} Background Information
Heterotrimeric G proteins function to relay information from cell surface receptors to intracellular effectors (1). Each of a very broad range of receptors specifically detects an extracellular stimulus (a photon, pheromone, odorant, hormone or neurotransmitter) while the effectors (e.g., adenyl cyclase), which act to generate one or more intracellular messengers, are less numerous. In mammals, G protein å, ∫ and © polypeptides are encoded by at least 16, 4 and 7 genes, respectively (2-5). Most interest in G proteins has been focused on their å subunits, since these proteins bind and hydrolyze GTP and most obviously regulate the activity of the best studied effectors. Four distinct classes of Gå subunits have been identified; these include Gs, Gi, Gq and Ga 12/13 (3,4). The Gq class includes Gå 15,Gå 14, Gå 11 and Gå q, two of which, Gå 11 and Gå q are abundant in brain and lung and present at lower levels in a variety of tissues (6).