Table 2.

Positions of base differences of related OXA-type β-lactamases and percentage of homology to bla OXA-10

EnzymePositionHomology (%)Accession no.b
97348370428468470a471521
OXA-10ATGAAGCA U37105
OXA-11GA0.99 Z22590
OXA-14A0.99 L38523
OXA-16AA0.99
OXA-17G0.99
OXA-7GGTT0.95 X75562
OXA-13c GGTT0.96 U59183
  • a With the guanine-to-adenine change at position 470, glycine replaced by aspartate, giving resistance to ceftazidime.

  • b Accession numbers were obtained from the GENIUSnet database of the German Cancer Research Center.

  • c Only the differences common to OXA-13 and OXA-7 are shown.