A. Bauernfeind et al., CHARACTERIZATION OF THE PLASMIDIC BETA-LACTAMASE CMY-2, WHICH IS RESPONSIBLE FOR CEPHAMYCIN RESISTANCE, Antimicrobial agents and chemotherapy, 40(1), 1996, pp. 221-224
The phenotype of Klebsiella pneumoniae HEL-1 indicates a plasmidic cep
hamycinase gene (bla(CMY-2)). Its sequence shows one open reading fram
e coding for a protein of 381 amino acids. CMY-2 is classified as clas
s C beta-lactamase that is closely related to the plasmidic enzymes BI
L-1 and LAT-1 and the chromosomal AmpC of Citrobacter freundii. The bl
a(CMY-2) gene possibly was translocated onto a plasmid of C. freundii
which spread to K. pneumoniae.