摘要
VP22是血清I型马立克氏病病毒(MDV-1)的复制和传播必不可少的组分。本研究从MDV-1无致病性的CVI988/Rispens疫苗感染的鸡胚成纤维细胞DNA中扩增得到VP22基因,并在大肠杆菌中表达其C端功能区。SDS-PAGE电泳发现,VP22C端得到高效可溶性表达,大小为42kDa左右。将获得的阳性条带经切胶免疫和细菌超声波裂解的上清作为抗原免疫6周龄Balb/C小鼠,均能诱导产生特异性抗VP22C端抗体。通过免疫荧光试验,检测到VP22在感染MDVCEF所有细胞核中呈特异性表达。这一抗体对深入研究VP22蛋白转导功能起到重要的作用。
Vitral protein VP22 is indispensable for the growth and replication of Marek＇s disease virus serotype 1（MDV-1）. In this study, vp22 gene was amplified from and avirluent CVI988/Rispens strain. Antibodies specific to the carboxyl terminus of VP22 expressed in E. coli were generated by immunizing Balb/C mice 3 times. The antibodies reacted with the complete VP22 expressed in Chick Embryo Fibroblast （CEF） cells infected with CVI988 virus. It is interesting that the VP22 protein could be found in normal CEF cells around MDV plagues. The results suggested that VP22 may be transported among cwlls in MDV infection, which is vital to the studies on functions of VP22.
出处
《中国病毒学》
CSCD
2006年第2期169-172,共4页
Virologica Sinica
基金
国家自然科学基金(30371070)
