G蛋白及其在细胞信号转导中的作用

概述G蛋白的结构、种类、转导信息的机制，细菌毒素对G蛋白调节的影响及研究G蛋的意义和今后发展的重点。

G Protein and its Functions in Signals Transduction of Cell

Signals transduction has important effects in total information network of cell, but the pathways of transduction are more complicated and involve many factors, therefore the advance of signals transduction is very slow.Along with the discoverment of G protein,especially the thorough and extensive studys of G protein, have important significances to the study of signals transduction. This article summariezs structure, type, mechanism and important effects of G proteins, as well the emphasis researched in future.