摘要
将流行性腹泻病毒(PEDV)S基因的真核表达质粒pVAX1-S作为抗原,免疫BALB/c小鼠制备多克隆抗体。抗体经纯化后,利用间接ELISA、间接免疫荧光、Western Blot方法检测制备多克隆抗体的生物学活性。结果表明,用PEDV S基因真核表达质粒免疫制备的多抗血清抗体效价可达1??214,该多克隆抗体不仅可以很好地识别PEDV S蛋白,还可以特异性检测到PEDV抗原。研究为PEDV的诊断和S蛋白免疫学特性研究提供试验依据。
This experiment was undertaken to prepare polyclonal antibody by immunization of BALB/c mouse with PEDV S gene eukaryotic expression plasmid (pVAX1-S) as antigen. The biological activity of the polyclonal antibody was assayed by indirect ELISA, indirect immunofluorescence (IF) test and Western Blot. The results showed that the antiserum titer was 1∶214. Not only the recombinant S protein could be identified by the polyclonal antibody, but also the PEDV-derived S protein. This study provided experimental basis of characterization of PEDV immunological properties and disease diagnosis.
出处
《东北农业大学学报》
CAS
CSCD
北大核心
2014年第6期61-66,共6页
Journal of Northeast Agricultural University
基金
国家自然科学基金面上项目(31372438)
教育部博士点基金项目(20122325110019)
黑龙江省普通高等学校长江学者后备支持计划项目(2013CJHB002)
关键词
猪流行性腹泻病毒
S蛋白
真核表达质粒
多克隆抗体
porcine epidemic diarrhea virus
S gene
eukaryotic expression plasmid
polyclonal antibody