title: Peptidyl transferase activity of Escherichia coli ribosomes having an altered protein component in the 50S subunit.
mesh_terms: D001426:Bacterial Proteins / Q000378:metabolism*; D002247:Carbon Isotopes; D004926:Escherichia coli / Q000378:metabolism*; D009154:Mutation; D010455:Peptides; D010649:Phenylalanine; D011119:Polynucleotides / Q000378:metabolism; D011188:Potassium / Q000494:pharmacology; D011691:Puromycin / Q000494:pharmacology; D000644:Quaternary Ammonium Compounds / Q000494:pharmacology; D012343:RNA, Transfer / Q000378:metabolism; D012270:Ribosomes / Q000187:drug effects / Q000201:enzymology; D014166:Transferases / Q000378:metabolism*; D014500:Uracil Nucleotides / Q000378:metabolism
chemical_list: D001426:Bacterial Proteins; D002247:Carbon Isotopes; D010455:Peptides; D011119:Polynucleotides; D000644:Quaternary Ammonium Compounds; D014500:Uracil Nucleotides; D010649:Phenylalanine; D011691:Puromycin; D012343:RNA, Transfer; D014166:Transferases; D011188:Potassium