Department of Respiratory Medicine, Center of Infectious Diseases and Pathogen Biology, Key Laboratory of Organ Regeneration and Transplantation of the Ministry of Education, State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, The First Hospital of Jilin University, Changchun, China.
Bioinformatics Laboratory, The First Hospital of Jilin University, Changchun, China.
mBio. 2023 Dec 19;14(6):e0227623. doi: 10.1128/mbio.02276-23. Epub 2023 Oct 19.
Plasmid conjugation is known to be an energy-expensive process, but our understanding of the molecular linkage between conjugation and metabolism is limited. Our finding reveals that utilizes a two-component system to co-regulate metabolism, plasmid transfer, and virulence by sensing reaction intermediates of key metabolic pathways, which suggests that nutrient availability dictates not only bacterial proliferation but also horizontal gene transfer. The identification of Dot/Icm-like proteins as components of a conjugation system involved in the dissemination of antibiotic-resistance genes by has provided important targets for the development of agents capable of inhibiting virulence and the spread of anti-microbial-resistance genes in bacterial communities.
质粒共轭被认为是一个能量密集的过程,但我们对共轭和代谢之间的分子联系的理解是有限的。我们的发现表明, 利用双组分系统通过感应关键代谢途径的反应中间体来共同调节代谢、质粒转移和毒力,这表明营养物质的可用性不仅决定了细菌的增殖,还决定了水平基因转移。Dot/Icm 样蛋白作为涉及抗生素耐药基因传播的共轭系统的组成部分的鉴定,为开发能够抑制细菌群落中毒力和抗微生物耐药基因传播的制剂提供了重要的靶标。