TABLE 5.

Chronology and homology of plasmid-mediated AmpC β-lactamases

AmpC β-lactamaseCountry of originPublication yrSpecies of first isolateLikely source of AmpC geneSimilarity (%)Reference(s)
CMY-1South Korea1989 K. pneumoniae A. hydrophila 82 20, 23
CMY-2Greece1996 K. pneumoniae C. freundii 96 22
MIR-1United States1990 K. pneumoniae E. cloacae 99 142, 248
MOX-1Japan1993 K. pneumoniae A. hydrophila 80 134
LAT-1Greece1993 K. pneumoniae C. freundii 95 326
FOX-1Argentina1994 K. pneumoniae A. caviae 99 95, 109
DHA-1Saudi Arabia1997 S. enteriditis M. morganii 99 98
ACT-1United States1997 K. pneumoniae E. asburiae 98 41, 279
ACC-1Germany1999 K. pneumoniae H. alvei 99 21, 106
CFE-1Japan2004 E. coli C. freundii 99 229