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IBDV VP3结构蛋白在大肠杆菌中的表达与鉴定 被引量:14

Expression and Identification of IBDV VP3 Structural Protein in E.Coli
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摘要 应用RT-PCR技术从鸡IBDV总RNA中克隆出893bp的VP3基因,并将其进一步克隆于pET-28a载体T7启动子的下游,构建了pETVP3原核表达载体。经IPTG诱导,在其宿主菌BL21(DE3)中成功表达了35.5,33kDa的鸡IBDVVP3蛋白。经SDS-PAGE和Westernblotting分析,VP3表达产物以包涵体形式存在,并与鸡IBDV抗血清特异性反应。 The VP3 gene about 893bp was obtained from the total RNA of the chicken IBDV by RT-PCR, then the VP3 gene was subcloned into the downstream of T7 promoter of the vector pET-28a to construct expression vector of pETVP3. The recombinant plasmid was transformed into in E. coli BL21(DE3) and induced with IPTG. SDS-PAGE and Western blotting analyses showed that the chicken IBDV VP3 protein of 35.5 and 33 kDa were efficiently expressed and mainly existed as inclusion bodies,with specific reactivity to anti-IBDV antibodies.
出处 《河南农业科学》 CSCD 北大核心 2005年第8期88-91,共4页 Journal of Henan Agricultural Sciences
基金 国家自然科学基金(30125035 30400323) 河南省高校杰出科研人才创新工程(2005KYCX008)
关键词 传染性法氏囊病病毒 VP3蛋白 表达 抗原性 IBDV VP3 protein Expression Antigenicity
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