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来自猪源耐利奈唑胺屎肠球菌分离株的新型质粒介导多药耐药基因簇,包括lsa(E) 。

Novel plasmid-borne multidrug resistance gene cluster including lsa(E) from a linezolid-resistant Enterococcus faecium isolate of swine origin.

作者信息

Si Hongbin, Zhang Wan-Jiang, Chu Shengbo, Wang Xiu-Mei, Dai Lei, Hua Xin, Dong Zhimin, Schwarz Stefan, Liu Siguo

机构信息

College of Animal Sciences and Technology, Guangxi University, Nanning, China.

State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China.

出版信息

Antimicrob Agents Chemother. 2015 Nov;59(11):7113-6. doi: 10.1128/AAC.01394-15. Epub 2015 Aug 31.

Abstract

A novel nonconjugative plasmid of 28,489 bp from a porcine linezolid-resistant Enterococcus faecium isolate was completely sequenced. This plasmid harbored a novel type of multiresistance gene cluster that comprised the resistance genes lnu(B), lsa(E), spw, aadE, aphA3, and two copies of erm(B), which account for resistance to macrolides, lincosamides, streptogramins, pleuromutilins, streptomycin, spectinomycin, and kanamycin/neomycin. Structural comparisons suggested that this plasmid might have developed from other enterococcal plasmids by insertion element (IS)-mediated interplasmid recombination processes.

摘要

对一株来自猪的耐利奈唑胺屎肠球菌分离株中一个28489 bp的新型非接合质粒进行了全序列测定。该质粒含有一种新型多耐药基因簇,其中包括耐药基因lnu(B)、lsa(E)、spw、aadE、aphA3以及两个erm(B)拷贝,这些基因赋予对大环内酯类、林可酰胺类、链阳菌素类、截短侧耳素类、链霉素、壮观霉素以及卡那霉素/新霉素的耐药性。结构比较表明,该质粒可能是通过插入元件(IS)介导的质粒间重组过程从其他肠球菌质粒进化而来。

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