Dissemination of sul3-containing elements linked to class 1 integrons with an unusual 3' conserved sequence region among Salmonella isolates.
A sul3 domain (IS440-sul3-orf1-IS26) was found linked to an unusual 3' conserved sequence region (qacH) of class 1 integrons and detected among nontyphoid Salmonella isolates (n=47) from different sources. Three types of integrons differing in the gene cassette array (dfrA12-orfF-aadA2-cmlA1-aadA1, dfrA12-orfF-aadA2/1, and estX-psp-aadA2-cmlA1-aadA1) were found associated with this sul3 domain. They were associated with particular clones and specific high-molecular-weight plasmids.
Antunes
Patrícia
P
Laboratório de Microbiologia, Faculdade de Farmácia, Universidade do Porto, Rua Aníbal Cunha, no. 164, 4050-047 Porto, Portugal.
Machado
Jorge
J
Peixe
Luísa
L
D001426:Bacterial Proteins / Q000235:genetics*; D017124:Conserved Sequence; D004269:DNA, Bacterial / Q000737:chemistry*; D032023:Integrons / Q000235:genetics*; D008969:Molecular Sequence Data; D010957:Plasmids / Q000235:genetics; D012475:Salmonella / Q000145:classification / Q000235:genetics* / Q000302:isolation & purification
D001426:Bacterial Proteins; D004269:DNA, Bacterial; C489157:Sul3 protein, Salmonella enterica