title: Magnesium ion dependence of free and polysomal ribosomes from Escherichia coli.
mesh_terms: D001431:Bacteriological Techniques; D002247:Carbon Isotopes; D004926:Escherichia coli; D008274:Magnesium; D011691:Puromycin / Q000494:pharmacology; D012333:RNA, Messenger / Q000032:analysis; D012343:RNA, Transfer / Q000032:analysis; D012260:Ribonucleases; D012270:Ribosomes / Q000032:analysis* / Q000187:drug effects
chemical_list: D002247:Carbon Isotopes; D012333:RNA, Messenger; D011691:Puromycin; D012343:RNA, Transfer; D012260:Ribonucleases; D008274:Magnesium