Variability in the Region Downstream of the bla CMY-2 β-Lactamase Gene in Escherichia coli and Salmonella enterica Plasmids

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