title: Dissemination of sulfonamide resistance genes (sul1, sul2, and sul3) in Portuguese Salmonella enterica strains and relation with integrons.
abstract: In 200 sulfonamide-resistant Portuguese Salmonella isolates, 152 sul1, 74 sul2, and 14 sul3 genes were detected. Class 1 integrons were always associated with sul genes, including sul3 alone in some isolates. The sul3 gene has been identified in isolates from different sources and serotypes, which also carried a class 1 integron with aadA and dfrA gene cassettes.
authors.affiliation: Faculdade de Ciências da Nutrição e Alimentação, Universidade do Porto, Rua Aníbal Cunha, n(o)164, 4050-047 Porto, Portugal.
authors.forename: Patrícia
authors.initials: P
authors.lastname: Antunes
authors.forename: Jorge
authors.initials: J
authors.lastname: Machado
authors.forename: João Carlos
authors.initials: JC
authors.lastname: Sousa
authors.forename: Luísa
authors.initials: L
authors.lastname: Peixe
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D001426:Bacterial Proteins / Q000235:genetics* / Q000378:metabolism; D003227:Conjugation, Genetic; D024881:Drug Resistance, Bacterial; D004926:Escherichia coli / Q000235:genetics; D005798:Genes, Bacterial / Q000235:genetics*; D006801:Humans; D032023:Integrons / Q000235:genetics*; D011174:Portugal / Q000453:epidemiology; D020133:Reverse Transcriptase Polymerase Chain Reaction; D012480:Salmonella Infections / Q000453:epidemiology / Q000382:microbiology; D019779:Salmonella enterica / Q000187:drug effects* / Q000235:genetics*; D013449:Sulfonamides / Q000494:pharmacology*
chemical_list: D000900:Anti-Bacterial Agents; D001426:Bacterial Proteins; C489157:Sul3 protein, Salmonella enterica; D013449:Sulfonamides