数字农科院2.0

嵌合型口蹄疫病毒样颗粒构建、表达及鉴定

文献类型: 中文期刊

作者: 刘绒欢;郭慧琛;杜平;董虎;郭梦楠;孙世琪

作者机构:

关键词: 口蹄疫病毒;嵌合型病毒样颗粒;OVA257-264;VP3

期刊名称:生物工程学报

ISSN: 1000-3061

年卷期: 2020 年 NULL 卷 7 期

页码: 1305-1313

收录情况: 北大核心(2020版) ; CSCD(2020-2021年度) ; 科技核心(2020版)

摘要: 为提高口蹄疫病毒(Foot-and-mouthdiseasevirus,FMDV)病毒样颗粒(Virus-likeparticles,VLPs)的特异性识别和递呈,为靶向疫苗研究奠定基础,利用反向PCR技术,将卵清蛋白(Ovalbumin,OVA)第257–264位氨基酸(Amino acids,aa)的短肽嵌入FMDV结构蛋白VP3第171–172位aa或第173–174位aa,通过大肠杆菌表达FMDV结构蛋白VP0、VP1和嵌合型VP3,体外组装得到嵌合OVA257-264肽的病毒样颗粒(VLPOVA).用动态光散射、透射电镜检测VLPOVA大小和形态,免疫印迹、酶联免疫吸附试验和激光共聚焦显微镜检测短肽的嵌入情况.结果显示在VP3的第173–174位aa嵌入OVA,不影响蛋白表达和VLPs的组装且OVA位于VLPOVA的表面,VLPOVA粒径比VLPs稍大.

分类号: S852.65

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