单词 | g protein |
释义 | > as lemmasG protein G protein n. Biochemistry any of a family of regulatory proteins acting as molecular switches which are activated by the reversible binding of guanine nucleotides (GDP or GTP) and are involved in signal transduction. ΚΠ 1975 S.-L. H. Liu et al. Biochem. Jrnl. 152 694/1 The present results confirm the existence in the rapidly growing Novikoff hepatoma cells of a glucocorticoid-binding protein with properties similar to the G-protein..in normal liver. 1996 Nature 25 Jan. 297 Many of the external signals reaching a cell are transmitted through G proteins, which lie just inside the cell membrane. 2009 Sci. Amer. (U.K. ed.) Aug. 66/2 The receptor changes shape to activate a second molecule known as a G protein, which in turn initiates a biochemical cascade inside. < as lemmas |
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