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猪博卡病毒VP1蛋白抗原表位分析及其克隆表达 被引量:3

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摘要 为研究猪博卡病毒(PBo V)VP1蛋白在血清学诊断中的作用,用DNAStar软件预测了PBo V NP08株(Gen Bank登录号KR014255.1)VP1蛋白的主要抗原表位,确定1-334个氨基酸为优势抗原表位区,构建重组质粒p ET32a-VP1,将其转化感受态细胞BL21(DE3),并进行IPTG诱导表达。结果表明,重组菌可表达分子量为56.7 ku的重组蛋白VP1,主要以包涵体形式存在。纯化后蛋白的Western blot结果表明,表达的VP1蛋白与临床阳性血清具有良好的反应性。用该蛋白包被ELISA板,检测10份临床感染PBo V的猪血清样品和3份未感染猪的血清,结果表明其具有很好的特异性,不与未感染猪的血清发生反应,为建立PBo V感染血清学诊断方法奠定了基础。
出处 《畜牧与兽医》 北大核心 2016年第9期96-99,共4页 Animal Husbandry & Veterinary Medicine
基金 国家自然科学基金项目(31201942)资助
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参考文献16

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