Biotechnology Bulletin ›› 2013, Vol. 0 ›› Issue (2): 135-139.

• Research report • Previous Articles     Next Articles

The Development and Identification of Rift Valley Fever Virus-like Particles

Deng Junhua Lin Xiangmei Zhang Yongning Wang Caixia Feng Chunyan Wu Shaoqiang   

  1. (Chinese Academy of Inspection and Quarantine,Beijing 100029)
  • Received:2012-06-26 Revised:2013-02-27 Online:2013-02-26 Published:2013-02-27
  • Contact: 吴绍强,男,博士,研究员,研究方向:动物检疫管理及科研工作;E-mail :sqwu@sina.com

Abstract: It was to develop Rift valley fever(RVF)virus-like particles(VLPs)to effectively offer positive material for molecular biological detection. pGEM-T-RVFV plasmid and p-MS2 were individually digested with both Pst I and Hind Ⅲ , and then purified ligated to generate recombinant plasmid p-MS2-RVFV. The plasmid was cotransformed into E. coli. DH5α cell and induced with IPTG, incubated with RNase A and DNase I, and then subsided with salt to obtain the rough-wrought virus-like particles. The method of gradient centrifugation was used to prepared rarefied virus-like particles which was determined for characteristic property. The puried particles were verified by Real-time RT-PCR. Results showed that the rarefied virus-like particles were able to endure RNase A, saved at any rate one month under subzero climatic condition, which indicated that the virus-like particles were stable and were simple transported;it indicated that the VLPs could attain a minimum detectable limit of 4.25×102 copies. The construction of virus-like particles could provide positive material for RVF molecular detection.

Key words: Rift valley fever virus(RVFV), Virus-like particles(VLPs), Identification