Complex class 1 integrons with diverse variable regions including aac(6’)-Ib-cr and a novel allele qnrB10 associated to ISCR1 in clinical enterobacteria from Argentina.

QUIROGA MP; ANDRES P; PETRONI A; SOLER-BISTUÉ A; GUERRIERO L; JORDÁ VARGAS L; ZORREGUIETA A; TOKUMOTO M; QUIROGA C; TOLMASKY M; GALAS M; CENTRÓN D

ANTIMICROBIAL AGENTS AND CHEMOTHERAPY

American Society for Microbiology

Año: 2007 vol. 51 p. 4466 - 4470

0066-4804

Transferable quinolone resistance has not previously been reported in Argentina. Here we describe three complex class 1 integrons harboring the novel allele qnrB10 in a unique region downstream of orf513, one of them also containing aac(6)-Ib-cr within the variable region of integrons. The three arrays differed from blaCTX-M-2-bearing integrons, which are broadly distributed in Argentina.CTX-M-2-bearing integrons, which are broadly distributed in Argentina.qnrB10 in a unique region downstream of orf513, one of them also containing aac(6)-Ib-cr within the variable region of integrons. The three arrays differed from blaCTX-M-2-bearing integrons, which are broadly distributed in Argentina.CTX-M-2-bearing integrons, which are broadly distributed in Argentina.aac(6)-Ib-cr within the variable region of integrons. The three arrays differed from blaCTX-M-2-bearing integrons, which are broadly distributed in Argentina.CTX-M-2-bearing integrons, which are broadly distributed in Argentina.