western印迹

　　提取蛋白质样品进行电泳分离，然后转移至薄膜，然后用抗体通过免疫学反应检测目的蛋白，分析基因的表达程度。
　　involves the transfer of electrophoretically separated protein molecules to membranes. The membrane is then probed with an antibody to detect the protein of interest, in a similar way to immunological screening of plaque lifts from expression libraries.