ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2015, Vol. 46 ›› Issue (4): 637-643.doi: 10.11843/j.issn.0366-6964.2015.04.018

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Preparation of the Virus-like Particles Containing the Partial Gene Fragment of AHSV

SUN Min1,2,LIANG Cheng-zhu2,WANG Qun2,ZHANG Xiao-wen2,XIAO Xi-zhi2,GENG Juan2,CHEN Ji-xiang1   

  1. (1.College of Marine Life Sciences,Ocean University of China,Qingdao 266005,China;2.Inspection and Quarantine Technical Center of Shandong Entry-exit Inspection and Quarantine Bureau,Qingdao 266002,China)
  • Received:2014-08-15 Online:2015-04-23 Published:2015-04-23

Abstract:

This experiment was conducted to prepare the virus-like particles containing the partial gene fragment of African horse sickness virus (AHSV).Genome segment 7 (S7) encoding protein VP7,the group-specific protein of AHSV,is a primary target for reverse transcription-PCR and real time reverse transcription-PCR detection of AHSV.The conservative sequence of S7 gene was synthesized and cloned into plasmid pNH-MS2his,which contained the coat protein gene of E.coli bacteriophage MS2 and His tag,to construct the prokaryotic express vector pNH-MS2his-VP7.The recombinant plasmid pNH-MS2his-VP7 was transformed into BL21 (DE3).Expression of the target protein was induced by IPTG for 5 h.The virus-like particles containing the S7 RNA sequence of AHSV were simply obtained by induction and sequent Ni+ chromatography purification.The virus-like particles were confirmed have good uniformity and stability.They have great prospect as the standard and quality control in the detection of AHSV.

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