二 、 effects of calcium concentration on the membrane - bound gq protein a subunit in the photoreceptor cell of macrobrachium rosenbergi on light adaptation and dark adaptation . the membrane - bound gq a was extracted from the retina of the macrobrachium rosenbergi with protein extract and was electophoresised by sds - page . the percent of the membrane - bound gq a was analyzed by tanon gis gel image disposal system 二、钙离子浓度对光暗适应罗氏沼虾感光细胞膜结合gq蛋白亚基的影响用蛋白质提取液提取膜结合gq蛋白亚基并sds - page电泳,利用tanongis凝胶图像处理系统分析其含量。