期刊文献+

对不同表达系统的猪圆环病毒2型Rep蛋白的电泳特性分析

Electrophoretic Characterization of PCV2 Rep Proteins Expressed by Different Expression Systems
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摘要 利用特异性引物从圆环病毒2型(PCV2)毒株克隆出Rep基因,并将其插入到原核表达载体pET28 a和杆状病毒转移载体pFastbacHT(B)上,利用大肠杆菌BL21(DE3)株原核系统以及Bac-to-Bac杆状病毒系统表达Rep蛋白.Western-blotting表明,原核和真核表达系统均能表达出圆环病毒2型Rep蛋白,电泳分析表明,不同系统表达得到的Rep蛋白有不同的电泳特性,揭示Rep蛋白存在翻译后修饰. Rep gene of PCV type 2 was amplified,and further inserted into the prokaryotic expression vector(pET28a) and the eukaryotic transfer vector(pFastbacHT(B)).Rep protein was expressed by both Escherichia coli BL21(DE3) and by baculovirus infected Sf9 cell line.Western-blotting indicated that prokaryotic and eukaryotic Rep proteins were successfully expressed with different electrophoretic characteristics,which revealed that there may be post-translational effects on Rep protein.
出处 《华南农业大学学报》 CAS CSCD 北大核心 2010年第4期118-120,共3页 Journal of South China Agricultural University
基金 “863”计划(2006AA10A205) 教育部新世纪优秀人才支持计划(NCET-06-0752) 国家自然科学青年基金(30800826) 广东省博士启动基金(8451064201001131) 农业微生物学重点实验室开发课题(20090010) 华南农业大学校长基金(5500-K08240)
关键词 圆环病毒2型 REP蛋白 原核表达 真核表达 杆状病毒表达系统 porcine circovirus type 2 Rep protein prokaryotic expression eukaryotic expression baculovirus expression system
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参考文献13

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