title: Structure of the ribosome.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D004926:Escherichia coli; D008970:Molecular Weight; D014176:Protein Biosynthesis; D012313:RNA; D012270:Ribosomes / Q000032:analysis; D012492:Salts; D014461:Ultracentrifugation
chemical_list: D012492:Salts; D012313:RNA