Table 3.

IC50s of clavulanic acid, sulbactam, and tazobactam for IRKO-1 enzyme (strain KER) and OXY-2-2 enzyme (strain HB60)

EnzymeIC50 (μM)
Clavulanic acidSulbactamTazobactam
IRKO-150>20050
OXY-2-20.210.2