Draft genome sequence of a KPC-2-producing Klebsiella pneumoniae ST340 carrying bla(CTX-M-15) and bla(CTX-M-59) genes: a rich genome of mobile genetic elements and genes encoding antibiotic resistance

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Casella, Tiago ; Zequini de Morais, Andressa Batista ; de Paula Barcelos, Diego Diniz ; Tolentino, Fernanda Modesto ; Cerdeira, Louise Teixeira ; Campagnari Bueno, Maria Fernanda ; Francisco, Gabriela Rodrigues ; de Andrade, Leonardo Neves ; da Costa Darini, Ana Lucia ; Garcia, Doroti de Oliveira ; Lincopan, Nilton ; Lelles Nogueira, Mara Correa

• Document type: Journal article
• Source: JOURNAL OF GLOBAL ANTIMICROBIAL RESISTANCE; v. 13, p. 2-pg., 2018-06-01.

Abstract

Objectives: Klebsiella pneumoniae is considered an opportunistic pathogen and an important agent of nosocomial and community infections. It presents the ability to capture and harbour several antimicrobial resistance genes and, in this context, the extensive use of carbapenems to treat serious infections has been responsible for the selection of several resistance genes. This study reports the draft genome sequence of a KPC-2-producing K. pneumoniae strain (Kp10) simultaneously harbouring blaCTX-M-15 and blaCTX-M-59 genes isolated from urine culture of a patient with Parkinson's disease. Methods: Classical microbiological methods were applied to isolate and identify the strain, and PCR and sequencing were used to identify and characterise the genes and the genetic environment. Whole-genome sequencing (WGS) was performed using a Nextera XT DNA library and a NextSeq platform. Results: WGS analysis revealed the presence of 5915 coding genes, 46 RNA-encoding genes and 255 pseudogenes. Kp10 belonged to sequence type 340 (ST340) of clonal complex 258 (CC258) and carried 20 transferable genes associated with antimicrobial resistance, comprising seven drug classes. Although the simultaneous presence of different blaCTX-M genes in the same strain is rarely reported, the blaKPC-2, blaCTX-M-15 and blaCTX-M-59 genes were not associated with the same genetic mobile structure in Kp10. Conclusions: These results confirm the capacity of K. pneumoniae to harbour several antimicrobial resistance genes. Thus, this draft genome could help in future epidemiological studies regarding the dissemination of clinically relevant resistance genes. (C) 2018 International Society for Chemotherapy of Infection and Cancer. Published by Elsevier Ltd. All rights reserved. (AU)

• FAPESP's process: 14/17184-0 - Identification of genes codifying ESBLs, quinolone resistance and virulence in E. coli isoltaed from chickens, chicken meat and patients with urinary tract infections
• Grantee: Mara Corrêa Lelles Nogueira
• Support Opportunities: Regular Research Grants