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IncH-type plasmid harboring bla CTX-M-15, bla DHA-1, and qnrB4 genes recovered from animal isolates.

  • Schlüter A Center for Biotechnology (CeBiTec), Institute for Genome Research and Systems Biology, Bielefeld University, Bielefeld, Germany.
  • Nordmann P INSERM U914, South-Paris Medical School, Le Kremlin-Bicêtre, France Medical and Molecular Microbiology Unit, Department of Medicine, Faculty of Science, University of Fribourg, Fribourg, Switzerland.
  • Bonnin RA INSERM U914, South-Paris Medical School, Le Kremlin-Bicêtre, France.
  • Millemann Y Unité Microbiologie Alimentaire, Sécurité et Qualité des Aliments (MASQ), Ecole Nationale Vétérinaire d'Alfort, Université Paris-Est, Maisons-Alfort, France.
  • Eikmeyer FG Center for Biotechnology (CeBiTec), Institute for Genome Research and Systems Biology, Bielefeld University, Bielefeld, Germany.
  • Wibberg D Center for Biotechnology (CeBiTec), Institute for Genome Research and Systems Biology, Bielefeld University, Bielefeld, Germany.
  • Pühler A Center for Biotechnology (CeBiTec), Institute for Genome Research and Systems Biology, Bielefeld University, Bielefeld, Germany.
  • Poirel L INSERM U914, South-Paris Medical School, Le Kremlin-Bicêtre, France Medical and Molecular Microbiology Unit, Department of Medicine, Faculty of Science, University of Fribourg, Fribourg, Switzerland laurent.poirel@unifr.ch.
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  • 2014-04-23
Published in:
  • Antimicrobial agents and chemotherapy. - 2014
Animal Diseases
Animals
Bacterial Proteins
Drug Resistance, Bacterial
Klebsiella Infections
Klebsiella pneumoniae
Metals, Heavy
Microbial Sensitivity Tests
Mutagenesis, Insertional
Phylogeny
Plasmids
Replicon
beta-Lactamases
English The whole sequence of plasmid pENVA carrying the extended-spectrum β-lactamase gene blaCTX-M-15 was determined. It was identified from a series of clonally related Klebsiella pneumoniae sequence type 274 strains recovered from companion animals. This plasmid was 253,984 bp in size and harbored, in addition to blaCTX-M-15, a large array of genes encoding resistance to many antibiotic molecules, including β-lactams (blaTEM-1, blaDHA-1), aminoglycosides (aacA2, aadA1), tetracycline (tetA), quinolones (qnrB4), trimethoprim (dfrA15), and sulfonamides (two copies of sul1). In addition, genes encoding resistance to mercury, tellurium, nickel, and quaternary compounds were identified. It also carried genes encoding DNA damage protection and mutagenesis repair and a locus for a CRISPR system, which corresponds to an immune system involved in protection against bacteriophages and plasmids. Comparative analysis of the plasmid scaffold showed that it possessed a structure similar to that of only a single plasmid, which was pNDM-MAR encoding the carbapenemase NDM-1 and identified from human K. pneumoniae isolates. Both plasmids possessed two replicons, namely, those of IncFIB-like and IncHIB-like plasmids, which were significantly different from those previously characterized. The blaCTX-M-15 gene, together with the other antibiotic resistance genes, was part of a large module likely acquired through a transposition process. We characterized here a new plasmid type carrying the blaCTX-M-15 gene identified in a K. pneumoniae isolate of animal origin. The extent to which this plasmid type may spread efficiently and possibly further enhance the dissemination of blaCTX-M-15 among animal and human isolates remains to be determined.
Language
  • English
Open access status
bronze
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https://sonar.ch/global/documents/93499
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