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应用原核表达的猪圆环病毒Ⅱ型Cap蛋白建立一种间接ELISA诊断方法
引用本文:林彦星,孙彦伟,刘镇明,陈靳松,龚善中,徐铮.应用原核表达的猪圆环病毒Ⅱ型Cap蛋白建立一种间接ELISA诊断方法[J].中国预防兽医学报,2007,29(3):217-221.
作者姓名:林彦星  孙彦伟  刘镇明  陈靳松  龚善中  徐铮
作者单位:1. 华南农业大学,兽医学院,广东,广州,510640
2. 广东省,动物防疫监督总所,广东,广州,510230
3. 华南农业大学,动物科学学院,广东,广州,510640
摘    要:本试验在最佳诱导条件下获得猪圆环痛毒Ⅱ型重组Cap蛋白的基础上,利用HisBind蛋白质纯化试剂盒对表达产物进行纯化,通过Westernblot检测证明表达产物具有良好的抗原性。以纯化后的重组融合蛋白作为诊断抗原,对ELISA反应条件进行优化,初步建立了检测PCV2抗体的间接ELISA方法。用该法对广东、广西一些地区收集到的380份血清样品进行检测,检测结果阳性率为86.1%,从中随机取90份猪血清样品与国产商品化试剂盒检测结果对比,符合率为95.6%,表明本实验建立的间接ELISA方法具有较高的敏感性和特异性,适于大规模检测PCV2血清抗体的流行病学调查。

关 键 词:重组Cap蛋白  表达  纯化
文章编号:1008-0589(2007)03-0217-05
收稿时间:2006-06-16
修稿时间:2006年6月16日

Development of an indirect ELISA diagnostic method with the main antigentic region of PCV2 capsid protein expressed in E.coli
LIN Yan-xing,SUN Yan-wei,LIU Zhen-ming,CHEN Jin-song,GONG Shan-zhong,XU Zheng.Development of an indirect ELISA diagnostic method with the main antigentic region of PCV2 capsid protein expressed in E.coli[J].Chinese Journal of Preventive Veterinary Medicine,2007,29(3):217-221.
Authors:LIN Yan-xing  SUN Yan-wei  LIU Zhen-ming  CHEN Jin-song  GONG Shan-zhong  XU Zheng
Abstract:An indirect enzyme-linked immunosorbent assay(ELISA) was developed based on a recombinant capsid protein of porcine circovirus type 2(PCV2).The recombinant capsid protein was expressed under the optimum induced condition,purified by a His Bind Purification Kit,and confirmed by Western blot assay.The indirect ELISA was used to test against 380 serum samples collected from Guangdong and Guangxi province and 86.1 % samples were positive.Compared with commercial ELISA kits,the assay showed a correlation rate of 95.6 % based on the data obtained from 90 randomly picked serum samples.The results indicated that the indirect ELISA is not only sensitive and specific,but also suitable for large-scale epidemiological investigation for PCV2 infection.
Keywords:PCV2  ELISA
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