title: Cations and ribosome structure. 3. Effects on the 30S and 50S subunits of replacing bound Mg 2+  by inorganic cations.
mesh_terms: D001464:Barium; D001665:Binding Sites; D002118:Calcium; D002413:Cations, Divalent / Q000494:pharmacology; D002414:Cations, Monovalent / Q000494:pharmacology; D002499:Centrifugation, Density Gradient; D055598:Chemical Phenomena; D002621:Chemistry; D003956:Dialysis; D004926:Escherichia coli / Q000166:cytology*; D008274:Magnesium / Q000378:metabolism; D008345:Manganese; D009994:Osmolar Concentration; D010179:Pancreas / Q000201:enzymology; D010452:Peptide Biosynthesis; D011188:Potassium; D000644:Quaternary Ammonium Compounds; D012335:RNA, Ribosomal / Q000378:metabolism; D012260:Ribonucleases / Q000494:pharmacology; D012270:Ribosomes / Q000187:drug effects / Q000378:metabolism; D013054:Spectrophotometry, Atomic; D013324:Strontium; D014461:Ultracentrifugation
chemical_list: D002413:Cations, Divalent; D002414:Cations, Monovalent; D000644:Quaternary Ammonium Compounds; D012335:RNA, Ribosomal; D001464:Barium; D008345:Manganese; D012260:Ribonucleases; D008274:Magnesium; D011188:Potassium; D002118:Calcium; D013324:Strontium