The State Research Center for Applied Microbiology & Biotechnology, Obolensk, Russia.
Antimicrob Agents Chemother. 2013 Mar;57(3):1552-5. doi: 10.1128/AAC.01471-12. Epub 2013 Jan 14.
The novel β-lactamase gene bla(CTX-M-116) was identified in a Proteus mirabilis nosocomial isolate recovered from the urine of a patient in Moscow in 2005. DNA sequence analysis showed bla(CTX-M-116) to be a hybrid gene consisting of 5' bla(CTX-M-23) (nucleotides 1 to 278) and 3' bla(CTX-M-22) (nucleotides 286 to 876) moieties separated by an intervening putative site of recombination (GTTAAAT). A retrospective analysis of available bla(CTX-M) genes in the GenBank database revealed 19 bla(CTX-M) genes that display the same hybrid structure.
2005 年,从莫斯科一位患者的尿液中分离出的奇异变形杆菌临床分离株中发现了新型β-内酰胺酶基因 bla(CTX-M-116)。DNA 序列分析表明,bla(CTX-M-116)是一种杂合基因,由 5'bla(CTX-M-23)(核苷酸 1 至 278)和 3'bla(CTX-M-22)(核苷酸 286 至 876)两部分组成,中间有一个推测的重组位点(GTTAAAT)。对 GenBank 数据库中现有 bla(CTX-M)基因的回顾性分析显示,有 19 个 bla(CTX-M)基因显示出相同的杂合结构。