Journal article

Identification of fosa8, a plasmid-encoded fosfomycin resistance determinant from Escherichia coli, and its origin in Leclercia adecarboxylata

  • Poirel, Laurent Medical and Molecular Microbiology Unit, Department of Medicine, Faculty of Science, University of Fribourg, Switzerland - INSERM European Unit (IAME, France), University of Fribourg, Fribourg, Switzerland - Swiss National Reference Center for Emerging Antibiotic Resistance (NARA), University of Fribourg, Switzerland
  • Vuillemin, Xavier Medical and Molecular Microbiology Unit, Department of Medicine, Faculty of Science, University of Fribourg, Switzerland
  • Kieffer, Nicolas Medical and Molecular Microbiology Unit, Department of Medicine, Faculty of Science, University of Fribourg, Switzerland
  • Mueller, Linda INSERM European Unit (IAME, France), University of Fribourg, Fribourg, Switzerland
  • Descombes, Marie-Christine Laboratoire Proxilis, Meyrin, Switzerland
  • Nordmann, Patrice Medical and Molecular Microbiology Unit, Department of Medicine, Faculty of Science, University of Fribourg, Switzerland - INSERM European Unit (IAME, France), University of Fribourg, Fribourg, Switzerland - Swiss National Reference Center for Emerging Antibiotic Resistance (NARA), University of Fribourg, Switzerland
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    01.11.2019
Published in:
  • Antimicrobial Agents and Chemotherapy. - 2019, vol. 63, no. 11
English A plasmid-located fosfomycin resistance gene, fosA8, was identified from a CTX-M- 15-producing Escherichia coli isolate recovered from urine. Identification of this gene was obtained by whole-genome sequencing. It encoded FosA8, which shares 79% and 78% amino acid identity with the most closely related FosA2 and FosA1 enzymes, respectively. The fosA8 gene was located on a transferable 50-kb plasmid of IncN type encoding high-level resistance to fosfomycin. In silico analysis and cloning experiments identified fosA8 analogues (99% identity) in the genome of Leclercia decarboxylata, which is an enterobacterial species with natural resistance to fosfomycin. This finding adds L. decarboxylata to the list of enterobacterial species that are a reservoir of fosA-like genes which have been captured from the chromosome of a progenitor and are then acquired by E. coli.
Faculty
Faculté des sciences et de médecine
Department
Médecine 3ème année
Language
  • English
Classification
Biology
License
License undefined
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/308400
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