Acta Laser Biology Sinica, Volume. 33, Issue 5, 461(2024)

The Two-component System YvrG/YvrH Regulates the Biosynthesis of Edeine

YU Jia1, ZHANG Liang2, LIU Tianbo3, CAI Hailin4, YI Ke5, QIU Liting1, WANG Yunsheng1, LIU Qingshu6, and CHEN Wu1、*
Author Affiliations
  • 1Hunan Agricultural University College of Plant Protection, Changsha 410128, China
  • 2Hunan Agricultural University College of Agronomy, Changsha 410128, China
  • 3Hunan Tobacco Science Research Institute, Changsha 410004, China
  • 4Changsha Branch of Hunan Provincial Tobacco Company, Changsha 410011, China
  • 5China Tobacco Hunan Industrial Co., LTD, Changsha 410014, China
  • 6Hunan Institute of Microbiology, Changsha 410009, China
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    Edeine, synthesized by Brevibacillus brevis X23, is a linear peptide antibiotic not encoded by ribosomal RNA, renowned for its extensive range of antibacterial effectiveness. Transcriptome sequencing revealed an inverse expression pattern between the two-component regulatory factors yvrG/yvrH and the edeine biosynthesis gene cluster (ede BGC), suggesting the involvement of YvrH/YvrG in the transcriptional regulation of ede BGC. This study utilized Red/ET homologous recombination technology to construct X23 mutant strains that yvrG/yvrH lacks, complemented strains, and overexpressing strains, and investigated the impact of YvrG/YvrH on edeine biosynthesis through phenotype analysis and quantitative real-time PCR (RT-qPCR) techniques. The results revealed that knocking out yvrG/yvrH significantly reduced the antibacterial activity of the strains, the expression of ede BGC decreased, the synthesis of edeine was inhibited, and the yield of edeine was reduced by 46.75%. In summary, YvrG/YvrH act as positive regulatory factors in the edeine biosynthesis. This study provides gene regulatory elements for the metabolic engineering of edeine.

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    YU Jia, ZHANG Liang, LIU Tianbo, CAI Hailin, YI Ke, QIU Liting, WANG Yunsheng, LIU Qingshu, CHEN Wu. The Two-component System YvrG/YvrH Regulates the Biosynthesis of Edeine[J]. Acta Laser Biology Sinica, 2024, 33(5): 461

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    Paper Information

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    Received: Mar. 21, 2024

    Accepted: Dec. 10, 2024

    Published Online: Dec. 10, 2024

    The Author Email: Wu CHEN (chenwuwarrior@163.com)

    DOI:10.3969/j.issn.1007-7146.2024.05.008

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