Expression of SU protein of ENTV-2FJ strain, preparation and characterstic analylsis of its polyclonal antibody

JIANG Jinxiu; ZHANG Jinpeng; LIN Yusheng; YOU Wei; HU Qilin

doi:10.19303/j.issn.1008-0384.2021.02.001

Volume 36 Issue 2

Feb. 2021

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Article Navigation > Fujian Journal of Agricultural Sciences > 2021 > 36(2): 135-140

JIANG J X, ZHANG J P, LIN Y S, et al. Expression of SU protein of ENTV-2FJ strain, preparation and characterstic analylsis of its polyclonal antibody [J]. Fujian Journal of Agricultural Sciences，2021，36（2）：135−140 doi: 10.19303/j.issn.1008-0384.2021.02.001

Citation:

JIANG J X, ZHANG J P, LIN Y S, et al. Expression of SU protein of ENTV-2FJ strain, preparation and characterstic analylsis of its polyclonal antibody [J]. Fujian Journal of Agricultural Sciences，2021，36（2）：135−140 doi: 10.19303/j.issn.1008-0384.2021.02.001

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Expression of SU protein of ENTV-2FJ strain, preparation and characterstic analylsis of its polyclonal antibody

doi: 10.19303/j.issn.1008-0384.2021.02.001

Institute of Animal Husbandry & Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, Fujan 350013,China

Received Date: 2020-09-03
Rev Recd Date: 2020-12-16

Available Online: 2021-02-08

Publish Date: 2021-02-28

Abstract

Abstract

Objective In order to determine the function of SU protein of enzootic nasal tumor virus of goats (ENTV-2), Method RT-PCR method was used to amplify the SU gene fragment from ENTV-2 FJ and then the SU gene was cloned into pMD-19T Simple Vector; After sequencing, the cloning vector was subcloned into PET-32a (+), the recombinant plasmid was transformed into RosettagamiB (DE3) competent cells. SDS-PAGE, Western-blot and ELISA were used for identification and antigenicity analysis of recombinant proteins. Result The result showed that the expressed recombinant protein was about 64.38 kD, and the best expression condition was induced at 37 ℃ for 4 h at a final IPTG concentration of 0.4 mmol/L. The purified ENTV-2 virus was used for SDS-PAGE, and the mice anti-SU polyclonal antibody was used as primary antibody for Western-blot. The Western-blot analysis showed the mice anti-SU polyclonal antibody could react with ENTV-2 antigen specifically. It is proved that the expressed SU recombinant protein has better antigenicity. Conclusion The results proved that the expressed SU recombinant protein has better antigenicity, and provided a basis for the preparation of ENTV-2 specific monoclonal antibody and the establishment of ENTV-2 specific serological method.
- Enzootic nasal tumor virus of goats,
- surface protein,
- prokaryotic expression,
- polyclonal antibody

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References(14)

References

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