黄色体B-乳清蛋白质与胶乳凝固密切相关,目前用来分离该组分蛋白质的电泳方法存在明显缺陷,影响到乳管堵塞机制的研究。采用Tris-甘氨酸和Tris-Tricine两种不同的缓冲系统,调整聚丙烯酰胺的浓度和交联度,比较不同SDS-PAGE法分离巴西橡胶树B-乳清中可溶性蛋白的效果。结果表明,通常使用的甘氨酸-SDS-PAGE法对B-乳清中低分子量蛋白分离效果差,Tricine-SDS-PAGE三层胶系统分离低分子量蛋白有优势,但分离60Ku附近的蛋白效果不好;16.5%T+3%C分离胶的Tricine-SDS-PAGE两层胶系统分离高分子量蛋白和低分子量蛋白的效果理想,是适合分离B-乳清中可溶性蛋白的方法,对于其他植物样品蛋白质的分离也有一定的指导意义。
B-serum soluble proteins from lutoids play an important role in latex coagulation whereas electrophoresis methods suitable for their separation is still unavailable. To find an effective electrophoresis method used to separate B-serum soluble proteins, 2 different buffer systems, tris-glycine and tris-tricine, as well as changes in acrylamide concentration and the degree of crosslinking were tested to construct several types of SDS-PAGE methods. The traditionally used Glycine-SDS-PAGE method had some shortc...