›› 2017, Vol. 44 ›› Issue (9): 2593-2597.doi: 10.16431/j.cnki.1671-7236.2017.09.008

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Prokaryotic Expression and Immunogenicity Analysis of N Protein from Vesicular Stomatitis Virus

ZHANG Xue1, LOU Li2, CHEN Yang1, ZHOU Xiao-li1, LIU Zhao1, JIA Yun1, SUN Ying-jie3   

  1. 1. Liaoning Entry-exit Inspection and Quarantine Bureau, Dalian 116001, China;
    2. Dandong Entry-exit Inspection and Quarantine Bureau, Dandong 118000, China;
    3. Sichuan Entry-exit Inspection and Quarantine Bureau, Chengdu 610000, China
  • Received:2017-02-27 Online:2017-09-20 Published:2017-09-22

Abstract:

This study was aimed to clone and express the specific antigen nucleoprotein (N) of vesicular stomatitis virus (VSV), and then purify and analyze its immunogenicity. Based on published VSV genome N gene sequence in GenBank, two kinds of N genes of VSV with different serotypes were synthesized, respectively. After sequence analysis, one pair of specific primers was designed and synthesized, N gene fragment with about 1 300 bp length was amplified by PCR, and subcloned into pCold Ⅰ expression vector. The recombinant N protein was induced with IPTG and purified by Ni-NTA. The results of SDS-PAGE showed that the N gene was successfully expressed in E. coli and the molecular weight of protein was 50 ku; The results of Western blotting showed that this recombined protein specifically reacted with polyclonal antibody serum of VSV. The recombinant vector with VSV-IND and VSV-NJ were successfully constructed, and the N protein was solubly expressed in E. coli, and the purified protein demonstrated promising immunogenicity.

Key words: vesicular stomatitis virus (VSV); N protein; prokaryotic expression

CLC Number: