TABLE 1.

Studied GES variants differing from GES-1 by one or two residues at Ambler positions 104 and 170

β-LactamaseAmino acid residue at position:
104170
GES-1GluGly
GES-7aLysGly
GES-2GluAsn
GES-5GluSer
GES-6LysSer
GES-13LysAsn
  • a Initially reported as IBC-1 (7).