title: Structure of Escherichia coli ribosomes: effect of ribonuclease on the 30-S and 50-S subunits.
mesh_terms: D002501:Centrifugation, Zonal; D003902:Detergents; D004926:Escherichia coli / Q000166:cytology*; D008274:Magnesium; D008722:Methods; D009994:Osmolar Concentration; D012329:RNA, Bacterial; D012260:Ribonucleases / Q000494:pharmacology; D012270:Ribosomes / Q000187:drug effects; D013057:Spectrum Analysis; D014461:Ultracentrifugation; D014466:Ultraviolet Rays
chemical_list: D003902:Detergents; D012329:RNA, Bacterial; D012260:Ribonucleases; D008274:Magnesium