Figure 1
From: Two novel CMY-2-type β-lactamases encountered in clinical Escherichia coli isolates
Schematic representation of the same three structures found within clinical isolates expressing bla CMY-46 and bla CMY-50 . The directions of transcription of the corresponding genes are depicted by arrows. A: sequence, including the genetic environment of bla CMY-type genes, compared with C. freundii chromosomal region (GenBank JH414884); B: class 1 integron, with attI1 site (grey circle) and the two attc regions (open circles); C: truncated mercury resistance operon.