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空肠弯曲菌penner o:19 cjaA基因的克隆表达
Authors
徐飞
李鑫
+7 more
李震中
白欣立
简朔
薛峰
赵子春
邢丛丛
高爱民
Publication date
10 April 2011
Publisher
Abstract
目的克隆空肠弯曲菌penner o:19 cjaA基因,构建其原核表达载体,诱导表达及纯化蛋白,为基因工程疫苗的研制打下基础。方法扩增空肠弯曲菌penner o:19 cjaA基因,构建pGEM-T-cjaA克隆载体,以EcoRI和XhoI为酶切位点构建pGEX-4T-1-cjaA原核表达载体。表达载体转化E.coli BL21后诱导表达,SDS-PAGE鉴定表达产物,用Glutathione Sepharose4B纯化重组蛋白。结果成功构建pGEX-4T-1-cjaA表达载体,并获得浓度为10μg/μl的rGST-CjaA重组蛋白。结论成功构建pGEM-T-cjaA克隆载体及pGEX-4T-1-cjaA表达载体,获得重组蛋白rGST-CjaA,为研究空肠弯曲菌疫苗打下基础
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Last time updated on 16/06/2016