Yang, Y J Biochemical characterization of a beta-lactamase that hydrolyzes penems and carbapenems from two Serratia marcescens isolates. [electronic resource] - Antimicrobial agents and chemotherapy May 1990 - 755-8 p. digital Publication Type: Journal Article ISSN: 0066-4804 Standard No.: 10.1128/AAC.34.5.755 doi Subjects--Topical Terms: Carbapenems--metabolismHydrolysisImipenem--metabolismIsoelectric FocusingKineticsMicrobial Sensitivity TestsSerratia marcescens--enzymologySpectrophotometry, Ultravioletbeta-Lactamase Inhibitorsbeta-Lactamases--metabolism