Variability in the Region Downstream of the <i>bla</i> _CMY-2 β-Lactamase Gene in <i>Escherichia coli</i> and <i>Salmonella enterica</i> Plasmids

Abstract

We used sequencing and PCR mapping to investigate the regions flanking the blaCMY-2 beta-lactamase gene carried by plasmids from Escherichia coli and Salmonella enterica. Results revealed genetic heterogeneity in the region downstream from blaCMY-2 and identified a putative transposable element bearing blaCMY-2.