Acta Laser Biology Sinica, Volume. 33, Issue 5, 461(2024)
The Two-component System YvrG/YvrH Regulates the Biosynthesis of Edeine
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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Received: Mar. 21, 2024
Accepted: Dec. 10, 2024
Published Online: Dec. 10, 2024
The Author Email: Wu CHEN (chenwuwarrior@163.com)