title: Cations and ribosome structure. II. Effects on the 50S subunit of substituting polyamines for magnesium ion.
mesh_terms: D001426:Bacterial Proteins / Q000302:isolation & purification / Q000378:metabolism; D003956:Dialysis; D004589:Electrophoresis, Disc; D004591:Electrophoresis, Polyacrylamide Gel; D004926:Escherichia coli / Q000166:cytology* / Q000378:metabolism; D008274:Magnesium / Q000378:metabolism* / Q000502:physiology; D010179:Pancreas / Q000201:enzymology; D010452:Peptide Biosynthesis; D010649:Phenylalanine / Q000378:metabolism; D010756:Phosphoric Acids / Q000378:metabolism; D011487:Protein Conformation; D011700:Putrescine / Q000494:pharmacology*; D012329:RNA, Bacterial / Q000378:metabolism; D012335:RNA, Ribosomal / Q000378:metabolism; D012260:Ribonucleases / Q000494:pharmacology; D012270:Ribosomes / Q000187:drug effects / Q000378:metabolism / Q000502:physiology; D013095:Spermidine / Q000494:pharmacology*; D014461:Ultracentrifugation; D014783:Viscosity
chemical_list: D001426:Bacterial Proteins; D010756:Phosphoric Acids; D012329:RNA, Bacterial; D012335:RNA, Ribosomal; D010649:Phenylalanine; D012260:Ribonucleases; D008274:Magnesium; D013095:Spermidine; D011700:Putrescine