猪瘟病毒 E2蛋白的原核表达及鉴定

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以猪瘟病毒(CSFV)E2蛋白为研究对象,通过扩增CSFV C株E2基因,亚克隆至原核表达载体pGEX-6P-1,构建重组原核表达质粒pGEX-6P-1-E2,转化至宿主菌Rostta(DE3)后进行诱导表达。SDSPAGE检测表明与目的蛋白大小一致,其分子质量大小为67.0ku,并且目的蛋白以包涵体形式存在。Western blot表明,重组蛋白能与CSFV兔化高免血清反应并且能被GST标签单抗所识别,表明该融合蛋白正确表达,具有良好的抗原性,为CSFV抗体检测试剂盒的研究奠定了基础。
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