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人巨细胞病毒gp52蛋白与pp65蛋白融合表达及初步应用 被引量:2

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摘要 建立以重组表达HCMV蛋白为抗原的检测试剂盒,提高试剂盒的敏感性及特异性。从病毒及质粒中分别扩增gp52(281~433aa,f1)及pp65(361~473aa,f2)2个片段,以不同酶切位点同时插入到pTrcHisB载体上,筛选正确的重组质粒并在大肠杆菌中诱导表达。表达蛋白rp52~65占菌体总蛋白的30%,以包涵体的形式存在,分子量为35000.以金属螯合亲和层析(IMAC)及分子筛方法纯化表达蛋白,纯度达到96%,得率为22.9%。以间接法检测HCMVIgM阳性血清,敏感性达到90.4%(19/21)。融合蛋白具有良好的抗原性,可代替gp52及pp65作为HCMVIgM抗体检测试剂盒的包被抗原。
出处 《微生物学杂志》 CAS CSCD 1999年第3期59-60,共2页 Journal of Microbiology
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  • 1倪合宇,中华微生物学和免疫学杂志,1990年,10卷,116页

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