In the past decade CTX-M enzymes have become the most prevalent extended-spectrum β-
lactamases, both in nosocomial and in community settings. The insertion sequences (ISs) …

The explosion in genetic information, whilst extending our knowledge, might not necessary
increase our conceptual understanding on the complexities of bacterial genetics, or why …

This study analyzes the diversity of In60, a class 1 integron bearing CR1 and containing bla
CTX-M-9, and its association with Tn 402, Tn 21, and classical conjugative plasmids among …

The four replicons of Cupriavidus metallidurans CH34 (the genome sequence was provided
by the US Department of Energy–University of California Joint Genome Institute) contain two …

We have sequenced a large plasmid that occurs among avian pathogenic Escherichia coli
isolates. This plasmid, pAPEC-O1-R, is a 241,387-bp IncHI2 plasmid which is …

60oC for 1 hour was determined in a buffer containing 50 mM Tris, pH 7.8, 1 mM 5, 5'-
dithiobis-(2-nitrobenzoic acid)(DTNB, Pierce), 0.1 mM chloramphenicol, and 0.4 mM acetyl …

The transfer (tra) operon of the conjugative F plasmid of Escherichia coli is a polycistronic 33-
kb operon which encodes most of the proteins necessary for F-plasmid transfer. Here, we …

Les betalactamases CTX-M formen una família d'enzims d'espectre ampliat capaços
d'hidrolitzar tots els betalactàmics amb l'excepció de l'associació amoxicilina-àcid …