Table 2.

MICs of specific β‐lactams.

	MIC (µg ml−1) a
β‐lactam Strain	Oxacillin	Cephalexin	Penicillin G	Cefoxitin
168	0.028	0.6	2.4	0.03
(wildtype)	(0.032–0.016)	(1.0–0.5)	(4–0.8)	(0.04–0.01)
4001	0.03	0.8	2.8	0.004
(pbpB *)	(0.032–0.016)	(1.0–0.5)	(4–0.8)	(0.005–0.003)
4015	0.008	0.16	2.6	0.02
(pbpC)	(0.01–0.005)	(0.2–0.05)	(4–0.4)	(0.04–0.01)

a. Value in brackets indicate the maximum and minimum values obtained for MICs for individual experiments.