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Position: Home > Articles > High Soluble Expression and Antigenicity of ORF6 Gene of Channel Catfish Virus Hubei Agricultural Sciences 2011,50 (5) 1001-1003+1048

斑点叉尾鮰病毒ORF6基因的高效可溶表达及抗原性分析

作  者:
刘玉林;王卫民;王敏;李莉娟
单  位:
华中农业大学水产学院;长江大学动物科学学院
关键词:
斑点叉尾鮰病毒;ORF6基因;高效可溶表达;抗原性
摘  要:
利用GST融合基因表达系统表达GST-GP6融合蛋白,以质粒pMD19-T-ORF6为模板,扩增出ORF6基因片段,将其克隆至大肠杆菌表达载体pGEX-4T-2,将所构建的重组质粒pGEX-4T-2-ORF6转化E.coli ER2566,并诱导表达,采用GST蛋白纯化系统进行纯化,所得产物进行10%SDS-PAGE及Western blot鉴定。结果表明,大肠杆菌细胞经诱导高效表达出约42kD蛋白,其分子量与GST-GP6融合蛋白相符,表达产物以可溶的形式存在。Western blot分析表明,融合蛋白能够与斑点叉尾鮰病毒(Channel catfish virus,CCV)阳性血清发生特异性反应,表明该重组蛋白具有良好的抗原性和特异性。
译  名:
High Soluble Expression and Antigenicity of ORF6 Gene of Channel Catfish Virus
作  者:
LIU Yu-lin1,2,WANG Wei-min2,WANG Min2,LI Li-juan2(1.School of Fishery,Huazhong Agriculture University,Wuhan 430070,China; 2.School of Animal Science,Yangtze University,Jingzhou 434025,Hubei,China)
关键词:
channel catfish virus;gene ORF6;high soluble expression;antigenicity
摘  要:
Recombinant GST-GP6 fusion protein was expressed using GST gene fusion system.The gene ORF6 was amplified from plasmid pMD19-T-ORF6 and cloned into pGEX-4T-2 expression vector.The recombinant plasmid pGEX-4T-2-ORF6 was expressed in E.coli ER2566 cells and the products were purified by GST purifying system.The resolved GST-GP6 fusion protein on 10% SDS-PAGE showed a major band at position of 42kD and the fusion protein was recognized by antibody of channel catfish virus(CCV).

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