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Schematic representation of the three ESBL-encoding plasmids. Main features are represented. Antimicrobial resistance-associated genes are indicated by hatched boxes. Transposon-related genes and insertion sequences are indicated by dark grey boxes. Replicase genes are indicated by black boxes. tra locus and heavy-metal resistance loci are indicated with light grey boxes. △ indicates a partial protein. Tnp, transposase.
