title: Studies on ribosomal topography by analysis of specific ribonucleoprotein fragments.
mesh_terms: D004926:Escherichia coli / Q000648:ultrastructure; D009698:Nucleoproteins / Q000032:analysis*; D009711:Nucleotides / Q000032:analysis; D012335:RNA, Ribosomal / Q000032:analysis; D012261:Ribonucleoproteins / Q000032:analysis*; D012270:Ribosomes / Q000648:ultrastructure*
chemical_list: D009698:Nucleoproteins; D009711:Nucleotides; D012335:RNA, Ribosomal; D012261:Ribonucleoproteins