NM; clavulanic acid, ten nM; sulbactam, 20 nM; tazobactam, 20 nM. Analytical isoelectric focusing
NM; clavulanic acid, ten nM; sulbactam, 20 nM; tazobactam, 20 nM. Analytical isoelectric focusing revealed that E. coli MG1 had two lactamase activities with pIs of five.4 and five.35. E.…