title: Structure of ribosomes.
mesh_terms: D005075:Biological Evolution; D003432:Cross-Linking Reagents; D004926:Escherichia coli / Q000235:genetics / Q000648:ultrastructure*; D008854:Microscopy, Electron; D008961:Models, Structural; D009154:Mutation; D011487:Protein Conformation; D012335:RNA, Ribosomal; D012269:Ribosomal Proteins / Q000276:immunology; D012270:Ribosomes / Q000648:ultrastructure*
chemical_list: D003432:Cross-Linking Reagents; D012335:RNA, Ribosomal; D012269:Ribosomal Proteins