title: Fragmentation of penicillin catalysed by the exocellular DD-carboxypeptidase-transpeptidase of Streptomyces strain r61. Isotopic study of hydrogen fixation on carbon 6.
mesh_terms: D002268:Carboxypeptidases / Q000378:metabolism*; D002384:Catalysis; D003903:Deuterium; D006859:Hydrogen; D007700:Kinetics; D002267:Muramoylpentapeptide Carboxypeptidase / Q000378:metabolism*; D010406:Penicillins / Q000378:metabolism*; D013302:Streptomyces / Q000201:enzymology*
chemical_list: D010406:Penicillins; D006859:Hydrogen; D003903:Deuterium; D002268:Carboxypeptidases; D002267:Muramoylpentapeptide Carboxypeptidase