1.
Antimicrob Agents Chemother
; 66(4): e0087521, 2022 04 19.
Artigo
em Inglês
| MEDLINE
| ID: mdl-35311517
RESUMO
This study aimed to verify the role of ISKpn23 in the expression and mobilization of blaBKC-1 and aph(3')-VIi. Five constructs related to the natural blaBKC-1 genetic background in plasmid p60136 were made and submitted for antimicrobial susceptibility testing and quantitative reverse transcription-PCR. Transposition of ISKpn23-blaBKC-1 was investigated using transposition assays involving a 9.7-kb nonconjugative plasmid carrying blaBKC-1 (p60136) and a transfer-proficient plasmid (pOX38-Gen). The presence of ISKpn23 had a crucial role in blaBKC-1 expression, resulting in increased ß-lactam MICs. While we detected mobilization of p60136 by the pOX38-Gen plasmid, transposition of ISKpn23-blaBKC-1 was not observed.