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登革2型病毒衣壳蛋白在哺乳动物细胞中的表达与鉴定
引用本文:秦成峰,秦鄂德.登革2型病毒衣壳蛋白在哺乳动物细胞中的表达与鉴定[J].生物技术通讯,2005,16(6):595-597.
作者姓名:秦成峰  秦鄂德
作者单位:军事医学科学院,微生物流行病研究所病原微生物生物安全国家重点实验室,北京,100071
基金项目:国家自然科学基金项目(30100006.30570084)
摘    要:从构建的重组质粒pLEX—C中高保真PCR获得编码登革2型病毒43株C基/E/(D2C)DNA片段,通过基因重组的方法将其克隆入真核表达载体pcDNA6/V5-His获得了重组真核表达载体pc/D2C。经电穿孔的方法转染BHK21细胞后,分别通过RT—PCR、免疫荧光和western印迹鉴定表达的蛋白。结果重组蛋白在BHK21细胞中获得表达,表达的蛋自主要存在于胞浆中,并具有较好的抗原性,能够被抗登革病毒衣壳蛋白单克隆抗体特异识别。此研究为深入了解登革病毒衣壳蛋白在病毒复制及组装过程中的生物学功能奠定了基础。

关 键 词:登革病毒  衣壳蛋白  真核表达
文章编号:1009-0002(2005)06-0595-03
收稿时间:04 6 2005 12:00AM
修稿时间:2005年4月6日

Expression and Identification of Dengue 2 Virus Capsid Protein in Mammalian Cells
QIN Cheng-feng,QIN E-de.Expression and Identification of Dengue 2 Virus Capsid Protein in Mammalian Cells[J].Letters in Biotechnology,2005,16(6):595-597.
Authors:QIN Cheng-feng  QIN E-de
Institution:State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology Academy of Military Medical Sciences, Beijing 100071, China
Abstract:The D2C gene fragments were amplified by high fidelity PCR from the constructed plasmid pLEX-C and then cloned into enkaryotic expression vector pcDNA6/V5-His to generate the desired recombinant plasmid pc/D2C. After transfected into the mammalian BHK21 cells by electroporation, the expression of recombinant proteins were identified by RT-PCR, indirect immunofluorescence and Western blot. The results of IFA showed the existence of D2C in the cytoplasm. The results of Western blot indicated the expressed D2C could react with the Mab 8H8 that specifically identified the capsid protein of dengue-2 virus. This work laid the foundation of interests on the biological function of capsid protein during the life cycle of dengue virus.
Keywords:dengue virus  capsid protein  enkaryotic expression
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