首页> 外文期刊>Genomics >Population structure and pangenome analysis of Enterobacter bugandensis uncover the presence of bla(CTX-M-55), bla(NDM-5) and bla(IMI-1), along with sophisticated iron acquisition strategies
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Population structure and pangenome analysis of Enterobacter bugandensis uncover the presence of bla(CTX-M-55), bla(NDM-5) and bla(IMI-1), along with sophisticated iron acquisition strategies

机译:肠杆菌的人口结构和Pangenome分析肠杆菌突发出BLA(CTX-M-55),BLA(NDM-5)和BLA(IMI-1)的存在,以及复杂的铁采集策略

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摘要

Enterobacter bugandensis is a recently described species that has been largely associated with nosocomial infections. We report the genome of a non-clinical E. bugandensis strain, which was integrated with publicly available genomes to study the pangenome and general population structure of E. bugandensis. Core- and whole-genome multilocus sequence typing allowed the detection of five E. bugandensis phylogroups (PG-A to E), which contain important antimicrobial resistance and virulence determinants. We uncovered several extended-spectrum beta-lactamases, including bla(CTX-M-55) and bla(NDM-5), present in an IncX replicon type plasmid, described here for the first time in E. bugandensis. Genetic context analysis of bla(NDM-)(5) revealed the resemblance of this plasmid with other IncX plasmids from other bacteria from the same country. Three distinctive siderophore producing operons were found in E. bugandensis: enterobactin (ent), aerobactin (iuc/iut), and salmochelin (iro). Our findings provide novel insights on the lifestyle, physiology, antimicrobial, and virulence profiles of E. bugandensis.
机译:肠杆菌Bugandensis是最近描述的物种,其在很大程度上与医院感染有关。我们报告了非临床E. Bugandensis菌株的基因组,其与公共可用的基因组集成,以研究E. Bugandensis的Pangenome和一般人群结构。核心和全基因组多层序列序列允许检测5e.Bugandensis的植物群(PG-A至E),其含有重要的抗微生物抗性和毒力决定簇。我们发现了几种扩展光谱β-内酰胺酶,包括在INCX复制子式质粒中存在的BLA(CTX-M-55)和BLA(NDM-5),这是在E. Bugandensis中首次描述的。 BLA(NDM - )(5)的遗传背景分析揭示了这种质粒与来自同一国家的其他细菌的其他Incx质粒相似。在E. Bugandensis中发现了三个独特的阳光生产记录:Enterobactin(ENT),Aerobactin(IUC / IUT)和Salmochelin(IRO)。我们的研究结果提供了关于E. Bugandensis的生活方式,生理学,抗菌药物和毒力分布的新颖见解。

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