| 释义 |
G-protein
G-pro·tein (jē′prō′tēn′, -tē-ĭn)n. Any of a class of cell membrane proteins that transmit signals from certain receptors to effector enzymes, enabling the cell to regulate its metabolism in response to hormones and other extracellular stimuli.
[From GTP-binding regulatory protein.]EncyclopediaSeeG proteinG-protein
G pro·teinsintracellular membrane-associated proteins activated by several (for example, β-adrenergic) receptors; they serve as second messengers or transducers of the receptor-initiated response to intracellular elements such as enzymes to initiate an effect. These proteins have a high affinity for guanine nucleotides and hence are named G proteins. Synonym(s): G-protein, GTP binding proteins, guanine nucleotide-binding protein, guanine-binding proteinG-protein (jē′prō′tēn′, -tē-ĭn)n. Any of a class of cell membrane proteins that transmit signals from certain receptors to effector enzymes, enabling the cell to regulate its metabolism in response to hormones and other extracellular stimuli. |