title: Electron microscopic studies of Escherichia coli ribosomal subunits.
mesh_terms: D001426:Bacterial Proteins; D002458:Cell Fractionation; D002499:Centrifugation, Density Gradient; D002918:Chymotrypsin; D004926:Escherichia coli / Q000166:cytology*; D005069:Evaluation Studies as Topic; D008274:Magnesium; D008722:Methods; D008854:Microscopy, Electron; D009690:Nucleic Acid Conformation; D009940:Organoids / Q000032:analysis; D012329:RNA, Bacterial; D012335:RNA, Ribosomal; D012270:Ribosomes; D013056:Spectrophotometry, Ultraviolet; D013194:Staining and Labeling; D014508:Urea
chemical_list: D001426:Bacterial Proteins; D012329:RNA, Bacterial; D012335:RNA, Ribosomal; D014508:Urea; D002918:Chymotrypsin; D008274:Magnesium