title: Replicon typing of plasmids carrying CTX-M or CMY beta-lactamases circulating among Salmonella and Escherichia coli isolates.
abstract: Replicon typing of plasmids carrying bla(CTX-M) or bla(CMY) beta-lactamase genes indicates a predominance of I1 and A/C replicons among bla(CMY)-carrying plasmids and five different plasmid scaffolds associated with the different types of bla(CTX-M) genes (I1, FII, HI2, K, and N). These results demonstrate the association of certain beta-lactamase genes with specific plasmid backbones.
authors.affiliation: Health Protection Agency Centre of Infections, London, UK.
authors.forename: Katie L
authors.initials: KL
authors.lastname: Hopkins
authors.forename: Ernesto
authors.initials: E
authors.lastname: Liebana
authors.forename: Laura
authors.initials: L
authors.lastname: Villa
authors.forename: Miranda
authors.initials: M
authors.lastname: Batchelor
authors.forename: E John
authors.initials: EJ
authors.lastname: Threlfall
authors.forename: Alessandra
authors.initials: A
authors.lastname: Carattoli
mesh_terms: D018550:Cephalosporin Resistance; D003227:Conjugation, Genetic; D004926:Escherichia coli / Q000201:enzymology / Q000235:genetics* / Q000302:isolation & purification; D010957:Plasmids / Q000235:genetics*; D012093:Replicon / Q000235:genetics*; D012475:Salmonella / Q000201:enzymology / Q000235:genetics* / Q000302:isolation & purification; D001618:beta-Lactamases / Q000235:genetics* / Q000378:metabolism
chemical_list: C103022:beta-lactamase CMY-2; D001618:beta-Lactamases