title: Electron microscopy of Escherichia coli ribosomal RNA: spreading without a basic protein film.
mesh_terms: D001426:Bacterial Proteins; D002499:Centrifugation, Density Gradient; D004121:Dimethyl Sulfoxide; D004926:Escherichia coli / Q000166:cytology*; D008722:Methods; D008854:Microscopy, Electron; D009691:Nucleic Acid Denaturation; D012329:RNA, Bacterial; D012335:RNA, Ribosomal; D014508:Urea
chemical_list: D001426:Bacterial Proteins; D012329:RNA, Bacterial; D012335:RNA, Ribosomal; D014508:Urea; D004121:Dimethyl Sulfoxide