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小反刍兽疫病毒核蛋白的原核表达及免疫原性分析

Release Time:2019-03-10  Hits:

Indexed by: Journal Article

Date of Publication: 2016-08-15

Journal: 中国农学通报

Included Journals: ISTIC

Volume: 32

Issue: 23

Page Number: 27-31

ISSN: 1000-6850

Key Words: 小反刍兽疫病毒;N蛋白基因;原核表达;间接酶联免疫吸附试验

Abstract: 为了获得小反刍兽疫病毒特异性抗原N蛋白,用于血清中抗小反刍兽疫病毒抗体检测方法的建立,根据GenBank中已发表的小反刍兽疫病毒(PPRV)N蛋白核苷酸序列,设计引物,扩增N基因.扩增片段通过Nde Ⅰ和Hind Ⅲ酶切位点插入表达载体pCold Ⅰ.重组蛋白通过pCold Ⅰ载体转化,在大肠杆菌BL21(DE3)中实现了原核表达,经SDS-PAGE和Western Blotting检测表明,表达产物为58 kD的融合蛋白,可被PPRV感染动物血清识别,重组蛋白具有良好的反应原性.用纯化的重组N蛋白作为包被抗原,建立了检测PPRV血清的间接ELISA方法,与国外标准ELISA试剂盒的符合率达98.3%,为建立快速检测小反刍兽疫病毒抗体的检测方法奠定了基础.

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