title: [Penicillin-inactivating enzyme, beta-lactamase, with special reference to the active sites, the role of the existence and the molecular evolution (author's transl)].
mesh_terms: D000190:Actinomyces / Q000201:enzymology; D001665:Binding Sites; D002511:Cephalosporins / Q000378:metabolism; D055598:Chemical Phenomena; D002621:Chemistry; D005827:Genetics, Microbial; D010403:Penicillin Resistance; D010405:Penicillinase / Q000378:metabolism*; D010406:Penicillins / Q000378:metabolism
chemical_list: D002511:Cephalosporins; D010406:Penicillins; D010405:Penicillinase