Mechanism of inhibition of chromosomal beta-lactamases by third-generation cephalosporins.

Abstract

The kinetic interactions of the beta-lactamase from Enterobacter cloacae 908 R with ceftriaxone, cefotaxime, and ceftazidime have been examined in detail. With all of these cephalosporins, there is an initial rapid reaction involving opening of the beta-lactam that then decreases to a slower steady-state rate (kss) of beta-lactam hydrolysis (at 37 degrees C… (More)

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