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主题:X-Gal
按主题分类的文章 "X-Gal"
- 利用 X-Gal 和 IPTG 平板进行蓝白斑筛选(Blue-White Screening)菌落筛选 蓝白斑筛选是一种常用且高效的分子生物学技术,常用于克隆实验中筛选重组菌株。该技术核心在于 β-半乳糖苷酶(β-galactosidase) 的酶促活性。β-半乳糖苷酶是一种四聚体酶,由大肠杆菌中的 lacZ α 基因 编码,能够分解乳糖生成葡萄糖和半乳糖。除此之外,β-半乳糖苷酶还可以水解另一种底物 X-Gal,生成 ...
- Blue-White Screening of Bacterial Colonies Utilizing X-Gal and IPTG Plates Blue-white screening of bacterial colonies is a popular and effective molecular biology tool often used to detect recombinant bacteria in cloning experiments. Central to this technique is the enzymatic activity of β-galactosidase, a tetrameric enzyme encoded by the lacZ α gene in E. coli that ...
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