beta-Lactamase--a human enzyme, too.
D006801:Humans; D010405:Penicillinase / Q000378:metabolism; D013379:Substrate Specificity; D013845:Thienamycins; D001618:beta-Lactamases / Q000378:metabolism*; D047090:beta-Lactams / Q000378:metabolism
D013845:Thienamycins; D047090:beta-Lactams; D010405:Penicillinase; D001618:beta-Lactamases; C015537:thienamycin