Glucagon receptors are G-protein coupled receptors for glucagon and play a central role in the regulation of blood glucose levels and glucose homeostatsis. It regulates the rate of hepatic glucose production by promoting glycogen hydrolysis and gluconeogenesis. Glucagon receptors also play an important role in mediating the responses to fasting. Ligand binding causes a conformation change that triggers signaling via guanine nucleotide-binding proteins (G-proteins) and modulates the activity of down-stream effectors.
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Protein Aliases: GL-R; Glucagon receptor
Gene Aliases: GCGR; GGR; GL-R; GR
Molecular Function: transmembrane signal receptor