单词	G protein
释义	G protein noun variants or G-protein ˈjē-ˈprō-ˌtēn  -ˈprō-tē-ən plural G proteins or G-proteins : any of a class of cell membrane proteins that are coupled to cell surface receptors and upon stimulation of the receptor by an extracellular signaling molecule (such as a hormone or neurotransmitter) bind to GTP to form an active complex which mediates an intracellular event (such as activation of adenylate cyclase) Word History Etymology guanosine triphosphate-binding protein First Known Use 1975, in the meaning defined above Medical Definition G protein noun variants or G-protein ˈjē-  : any of a class of cell membrane proteins that are coupled to cell surface receptors and upon stimulation of the receptor by an extracellular molecule (as a hormone or neurotransmitter) bind to GTP to form an active complex which mediates an intracellular event (as activation of adenylate cyclase)
随便看	Congregationist congregations congregative congregativenesses congregator congregators congress Congress cap congress gaiter congress money congress people congress person congress persons congress shoe congressed congresses congressing congression congressional congressional delegation congressional district Congressional Medal Congressional Medal of Honor congressionalist congressionalists

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