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原核表达载体pGEX-4T-1/Snapin的构建和表达鉴定 被引量:1

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摘要 目的构建pGEX-4T-1/Snapin原核表达载体并在大肠埃希菌中高效表达,以纯化得到Snapin/GST融合蛋白。方法用RT-PCR从小鼠血小板RNA中扩增Snapin基因。将目的片段装入原核表达载体pGEX-4T-1并转化至大肠埃希菌E.coli DH5α中,经过IPTG诱导,SDS-PAGE及凝胶扫描分析目的蛋白的表达水平。结果成功获得小鼠Snapin基因并构建得到重组表达质粒pGEX-4T-1/Snapin。筛选获得pGEX-4T-1/Snapin/E.coli DH5α重组转化菌株,诱导表达得到融合蛋白Snapin/GST。结论成功构建小鼠Snapin原核表达载体,并在E.coli DH5α中高效表达融合蛋白Snapin/GST,为深入研究Snapin蛋白的生物学结构和功能奠定基础。
作者 刘奇 汤俊明
出处 《临床检验杂志》 CAS CSCD 北大核心 2014年第10期733-735,共3页 Chinese Journal of Clinical Laboratory Science
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