In order to study the upstream and downstream components in g protein and calmodulin signal pathways , a yeast two - hybrid system was used to screen interaction partners of these two proteins 本文利用酵母雙雜交系統(tǒng)分別篩選了與這兩種蛋白相互作用的蛋白質(zhì),以進(jìn)一步研究g蛋白和cam信號(hào)轉(zhuǎn)導(dǎo)途徑中的其它上下游組分。