Levelsof Cia2, Gia3 and Gsa in sarcolemma and light vesicle were measurdd by Westem blotanalysis. Adenyl cyclase activities were determined by radioimmunoassay.

• 采用免疫印迹法和放射免疫法分别测定大鼠心脏Gia2，Gia3和Gsa的含量及腺苷酸环化酶的活性。