the substrate profile of this enzyme is that of a cephalosporinase : its activity was highest on cephalothin , cephapirin , cephaloridine and cefazolin , while hydrolysis of ampicillin and carbenicillin was not detected . beta-lactamase-resistant cefoxitin and cefotaxime were not hydrolysed .
C0728805
cephalosporinase
C0597979
beta-lactamase