Preparation of double-labeled virus-like particles (VLPs) of PRRSV

The invention discloses a method for preparing and identifying double-labeled virus-like particles (VLPs) of PRRSV, and relates to the field of biological research technology; a pMD18T recombinant plasmid containing GP5, M and N protein coding genes ORF5, ORF6 and ORF7 is prepared as an amplificatio...

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Main Authors HOU QIAN, DAI JUNFEI, ZHANG JIE, OU YUNWEN, ZHANG YONGGUANG, WANG JUN, MA BING, LIU YONGSHENG, DING YAOZHONG, SUN YUEFENG, LI QIAN
Format Patent
LanguageChinese
English
Published 16.11.2018
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Summary:The invention discloses a method for preparing and identifying double-labeled virus-like particles (VLPs) of PRRSV, and relates to the field of biological research technology; a pMD18T recombinant plasmid containing GP5, M and N protein coding genes ORF5, ORF6 and ORF7 is prepared as an amplification template, a Myc tag is introduced at the end of the ORF5, a His tag is introduced into the end ofthe ORF6, a recombinant plasmid is obtained by recombination to PpH and Pp10 promoters of a binary vector, the recombinant plasmid is transferred into DH10Bac E. coli to obtain a recombinant bacmid; and the ORF7 and a pFastBacHTB vector are recombined to obtain a recombinant bacmid. The two recombinant bacmids are inoculated into SF9 cells, and Myc-GP5, His-M and His-N proteins are successfully expressed and automatically assembled into the VLPs. The method lays a foundation for studying the function of the GP5 and M and N major structural proteins and developing VLP vaccines that can distinguish between infection and
Bibliography:Application Number: CN201810785057