TABLE 3.

Inhibition profile of CMY-30 cephalosporinase and comparison with CMY-2

Inhibitor	Ki (μM) for:
	CMY-30	CMY-2
Cloxacillin	2.3 × 10−3	0.2 × 10−3
Aztreonam	17 × 10−3	2.1 × 10−3
Ro 48-1220	200 × 10−3	100 × 10−3
Tazobactam	>1,000 × 10−3	800 × 10−3