title: A comparison of the exo-penicillinases mediated by a chromosomal gene in a strain of Staphylococcus aureus PS 80 and by a plasmid gene in Staphylococcus aureus 8325.
mesh_terms: D002247:Carbon Isotopes; D002845:Chromatography; D002876:Chromosomes, Bacterial; D005111:Extrachromosomal Inheritance; D010405:Penicillinase / Q000032:analysis*; D013210:Staphylococcus / Q000201:enzymology*; D014316:Tritium
chemical_list: D002247:Carbon Isotopes; D014316:Tritium; D010405:Penicillinase