›› 2009, Vol. 29 ›› Issue (3): 162-167.

• 论文 • 上一篇    下一篇

B病毒糖蛋白的原核表达及ELISA检测方法的建立

  

  1. 中国药品生物制品检定所,北京,100050
  • 收稿日期:2008-11-10 出版日期:2009-03-31 发布日期:2009-03-31

Establishment of ELISA Method for Detection of Monkey B Virus

  1. National Institute for the Control of Pharmaceutical and Biological Products, Beijing 100050, China
  • Received:2008-11-10 Online:2009-03-31 Published:2009-03-31

摘要: 目的 表达B病毒糖蛋白,筛选出具有较好检测敏感性和特异性的抗原或抗原组合,用以检测猴血清中的抗体。方法 原核表达B病毒糖蛋白C,D和G,经纯化、复性后用蛋白印记验证其抗原性,建立ELISA法,对方法进行评价。结果 3个表达抗原反应特异性较好; 以BV-ELISA为标准,各抗原的检测敏感性分别是: BVgC-ELISA 84.6%,BVgD-ELISA 88.5%,BVgC+gD-ELISA 96.2%, 检测特异性分别是: BVgC-ELISA 93%, BVgD-ELISA 85.7%, BVgC+gD-ELISA 64.3%。结论 表达的3个BV重组抗原都具备作为替代抗原检测BV抗体的潜力。

关键词: B病毒, 酶联免疫吸附试验, 敏感性, 特异性, 原核表达

Abstract: Objective To express the glycoproteins of simian B virus, use them to detect the BV antibodies in serum,and search for the better antigens or their combination which have best sensitivity and specificity. Methods Express B virus glycoprotein C,D and G and check their antigenicity by Western Blot after purification and renaturation.The ELISA was established and evaluated. Results The three antigens react well with simian serum which BV antibody is positive. The sensitivity of the antigens is BVgC-ELISA 84.6%, BVgD-ELISA 88.5%,BVgC+gD-ELISA 96.2%, specificity is BVgC-ELISA 93%, BVgD-ELISA 85.7%, BVgC+gD-ELISA 64.3% according to the results of BV-ELISA. Conclusion The three antigens react well with simian serum and can be used as surrogate antigens of BV.

Key words: B vims, ELISA, Sensitivity, Specificity, Prokaryotic expression