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. 2001 Sep;45(9):2598–2603. doi: 10.1128/AAC.45.9.2598-2603.2001

FIG. 1.

FIG. 1

Comparison of the amino acid sequence of GES-2 to those of GES-1 and IBC-1 β-lactamases (7, 28). The numbering is according to the Ambler designation (1). Highlighted amino acids are those strictly conserved in class A β-lactamases. The amino acids of the omega loop are underlined.