摘要
目的在大肠埃希菌中表达重组风疹病毒外膜蛋白E1,用其作为包被抗原,建立一种用于诊断风疹病毒感染的ELISA检测方法。方法通过基因重组的方式构建表达质粒并在大肠埃希菌中表达风疹病毒外膜蛋白E1,蛋白纯化后作为包被抗原,用ELISA的方法检测世界卫生组织(WHO)的风疹检测质控血清以及来自广西桂林的未知血清样本。结果采用WHO用于风疹检测的质控血清对所表达的重组抗原的抗原性进行鉴定,通过试验,特异性、敏感性均为100%。用表达的抗原对来自我国广西的200份未知血清样本进行风疹病毒外膜蛋白抗体的检测,阳性率为93%,与文献报道的我国其他地区风疹病毒抗体阳性率基本一致。结论通过实验我们表达了具有良好抗原性的风疹病毒外膜蛋白E1,为进一步研究风疹病毒感染的实验室诊断技术奠定了基础。
Objective To apply recombinant rubella virus envelope protein-1 (E1) to detect human rubella virus IgG antibody. Methods Rubella virus E1 protein was expressed in E. colt. ,purified E1 protein was used as the antigen for the detecting of anti rubella in human sera in the way of enzyme linked Immtmosorbant assay (ELlSA).Results The antigencity of the recombinant protein was checked by WHO rubella sera panel. We detected 200 sera samples, which came from Guangxi Guilin. 93 % of these samples were positive. Conclusion The antigenieity of recombinant E1 is a satisfied candidate antigen for the detecting of human rubeila virus antibody. The prevalence of anti rubella virus IgG in Guangxi is 93 % . It is at the some level compared with other provinces in China.
出处
《中华实验和临床病毒学杂志》
CAS
CSCD
北大核心
2008年第5期382-384,共3页
Chinese Journal of Experimental and Clinical Virology
基金
“九七三”项目支持(CI99055904)