Chavda Kalyan D, Chen Liang, Jacobs Michael R, Rojtman Albert D, Bonomo Robert A, Kreiswirth Barry N
Public Health Research Institute Center, New Jersey Medical School, Rutgers University, Newark, New Jersey, USA.
Department of Pathology, University Hospitals Case Medical Center, Cleveland, Ohio, USA.
Antimicrob Agents Chemother. 2015 May;59(5):2956-9. doi: 10.1128/AAC.00041-15. Epub 2015 Mar 9.
Horizontal transfer of bla(KPC)-harboring plasmids contributes significantly to the inter- and intraspecies spread of Klebsiella pneumoniae carbapenemase (KPC). Here we report the complete nucleotide sequence of a bla(KPC)-harboring IncFIA plasmid, pBK32533, from Escherichia coli. pBK32533 is a cointegrate plasmid comprising of a 72-kb sequence identical to that of the nonconjugative pBK30661 plasmid plus an additional 170-kb element that harbors the genes for plasmid transfer. pBK32533 demonstrates how bla(KPC) can be spread from a nonconjugative plasmid through cointegration.
携带bla(KPC)的质粒的水平转移对肺炎克雷伯菌碳青霉烯酶(KPC)在种间和种内的传播有显著贡献。在此,我们报告了来自大肠杆菌的携带bla(KPC)的IncFIA质粒pBK32533的完整核苷酸序列。pBK32533是一个共整合质粒,由一段与非接合性质粒pBK30661相同的72 kb序列以及一个额外的170 kb元件组成,该元件含有质粒转移基因。pBK32533展示了bla(KPC)如何通过共整合从非接合性质粒传播。