Complete sequence of pBM413, a novel multidrug resistance megaplasmid carrying qnrVC6 and blaIMP-45 from pseudomonas aeruginosa.

This study aimed to characterise a novel multidrug resistance megaplasmid carrying qnrVC6 and blaIMP-45 from Pseudomonas aeruginosa strain Guangzhou-Pae617 isolated from a patient hospitalised in Guangzhou, China, in 2012. The plasmid pBM413 has a length of 423 017 bp and an average G + C content of 56.41%. A qnrVC6 gene flanked by two copies of insertion sequence (IS) elements ISCR1, a multiresistance class 1 integron In786 containing aacA4-blaIMP-45-blaOXA-1-catB3 cassettes, an armA gene, and an aphA7 gene flanked by two copies of IS26 were identified. To our knowledge, this is the first identification of a qnrVC6 gene in P. aeruginosa.