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鹅绒藤全植株中巯基蛋白酶的提取、纯化及部分性质研究 被引量:3

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摘要 为了从鹅绒藤(Cynanchum chinese R.Br.)全植株中提取、纯化巯基蛋白酶并进行部分性质研究,采集全植株,粉碎后用盐析、凝胶层析、离子交换层析方法纯化蛋白酶。结果,得到两种活性蛋白,其中一种经SDS-PAGE鉴定为均一条带,分子质量15.8KD;作用最适pH 7.0,最适温度50℃。对Hb A-β链水解的Km值为1.23×10-6mol/L。巯基酶抑制剂、保护剂实验提示该酶为巯基蛋白酶。结论,实验流程简洁可行,提纯得到的蛋白酶纯度较高、得率中等。
出处 《宁夏医学院学报》 2006年第6期551-553,共3页 Journal of Ningxia Medical College
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