›› 2016, Vol. 43 ›› Issue (4): 940-945.doi: 10.16431/j.cnki.1671-7236.2016.04.013

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Construction and High Level Expression of Prokaryotic Expression Vector of Pig Interferon-δ Gene

LI Hong1, LIU Cheng-qian1, YAN Hua-xiang1, WANG Jia-hao2, YI Jian-zhong1   

  1. 1. Institute of Animal Husbandry & Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China;
    2. Shanghai Vocational College of Agriculture and Forestry, Shanghai 201699, China
  • Received:2015-10-08 Online:2016-04-20 Published:2016-04-27

Abstract: Interferon (IFN) had recieved much more attention because of its broad-spectrum antiviral, antitumor activity and immune regulation.One pair of primers were designed for amplifying pig IFN-δ gene with PCR method according to the relevant sequence from GenBank.The IFN-δ gene was cloned into prokaryotic expression vector, and the recombinant plasmid was obtained.We transformed the recombinant plasmid into E.coli Transetta BL21(DE3) strain and the protein expression was identified by SDS-PAGE and Western blotting.The results showed that pET-30a-DsbA-IFN-δ recombinant protein was 20 ku and expressed mainly in the form of inclusion body, these expressed protein could specific react with His-tag monoclonal antibody.

Key words: pig; interferon-δ; prokaryotic expression

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