ACTA AGRICULTURAE BOREALI-SINICA ›› 2021, Vol. 36 ›› Issue (S1): 347-352. doi: 10.7668/hbnxb.20192269

Special Issue: Animal husbandry Biotechnology

• Resources & Environment·Plant Protection • Previous Articles     Next Articles

Prokaryotic Tandem Expression and Antibody Preparation of Subtilomycin Structural Gene subA from Bacillus subtilis SX3411

FENG Lei1, WEI Weiqun2, ZHONG Xueqing1, FU Mingjia1, XIAO Shiping2, YE Dexiao1, HUANG Ziyan1   

  1. 1. College of Life Sciences, Jiangxi Normal University, Nanchang 330022, China;
    2. Jiangxi Tianjia Biological Engineering Co., Ltd., Nanchang 330200, China
  • Received:2021-04-10 Published:2021-12-28

Abstract: In order to improve the antigenicity of the expression product of Subtilomycin precursor gene of Bacillus subtilis SX3411, a three-times repeated tandem 3×subA gene was synthesized by chemical synthesis method. The prokaryotic expression vector of 3×subA was constructed and transferred into Escherichia coli.The results showed that the 3×subA gene was expressed in E. coli. SDS-PAGE was used to purify the E. coli expressed SubA. After immunizing rabbits, the antibody anti-3×SubA was prepared and had a high titer. The intracellular expression of Subtilomycin precursor polypeptide subA was detected by Western Blotting. The results showed that B. subtilis SX3411 was cultured at 30℃ for different time, and there were more subA expressions in the cells of B. subtilis 3411 at about the 10th and 12th hour. In conclusion, the fusion expression product 3×SubA obtained by tandem expression of the Subtilomycin precursor gene subA has good antigenicity, and the obtained antibody anti-3×SubA can be used for the detection and analysis of Subtilomycin precursors in B subtilis SX3411.

Key words: Bacillus subtilis SX3411, Lantibiotics, Subtilomycin, SubA protein expression, Antibody preparation

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Cite this article

FENG Lei, WEI Weiqun, ZHONG Xueqing, FU Mingjia, XIAO Shiping, YE Dexiao, HUANG Ziyan. Prokaryotic Tandem Expression and Antibody Preparation of Subtilomycin Structural Gene subA from Bacillus subtilis SX3411[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2021, 36(S1): 347-352. doi: 10.7668/hbnxb.20192269.

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