title: Role of subunits in the ribosome cycle.
mesh_terms: D000643:Ammonium Chloride; D001426:Bacterial Proteins / Q000096:biosynthesis*; D004926:Escherichia coli / Q000166:cytology / Q000378:metabolism*; D008274:Magnesium / Q000494:pharmacology; D010455:Peptides / Q000378:metabolism; D011188:Potassium / Q000494:pharmacology; D012333:RNA, Messenger / Q000378:metabolism; D012270:Ribosomes / Q000378:metabolism*; D012964:Sodium / Q000494:pharmacology; D014461:Ultracentrifugation
chemical_list: D001426:Bacterial Proteins; D010455:Peptides; D012333:RNA, Messenger; D000643:Ammonium Chloride; D012964:Sodium; D008274:Magnesium; D011188:Potassium