[The advancement of G protein and coupled signal transduction pathways]

G protein coupled signal transduction system is one major transmembrane signaling pathways in cell. Research of biochemistry and pharmacology in medicine showed that a lot of medicines play their role through G protein coupled signaling pathways. Thus, systematic study on G protein structure and functions had very important effects on new medicine producing. In the process of creature evolution, there are highly conserved amino-acid sequences in G protein. Study on G protein and coupled signal components in plants and insects signaling processes may benefit to determine the mechanism of crop resistance to disease and pest insect and resistant chemicals effect on insect behavior and physiology. This paper reviews the research progress and prospect of practical use in recent studies of G protein and coupled components in animal, insect and plant signaling pathways.