| Literature DB >> 32122889 |
Nicolas Kieffer1, Laurent Poirel2,3,4, Linda Mueller1,4, Stefano Mancini1,5, Patrice Nordmann1,3,4,6.
Abstract
A fosfomycin-resistant and carbapenemase (OXA-48)-producing Klebsiella pneumoniae isolate was recovered, and whole-genome sequencing revealed ISEcp1-bla CTX-M-14b tandemly inserted upstream of the chromosomally encoded lysR-fosA locus. Quantitative evaluation of the expression of lysR and fosA genes showed that this insertion brought a strong hybrid promoter leading to overexpression of the fosA gene, resulting in fosfomycin resistance. This work showed the concomitant acquisition of resistance to broad-spectrum cephalosporins and fosfomycin due to a single genetic event.Entities:
Keywords: FOS; FosA; ISEcp1zzm321990; Klebsiella pneumoniae; fosfomycin
Mesh:
Substances:
Year: 2020 PMID: 32122889 PMCID: PMC7179579 DOI: 10.1128/AAC.00150-20
Source DB: PubMed Journal: Antimicrob Agents Chemother ISSN: 0066-4804 Impact factor: 5.191