title: Sequence studies on precursor 16S ribosomal RNA of Escherichia coli.
mesh_terms: D001345:Autoradiography; D001483:Base Sequence; D004586:Electrophoresis; D004926:Escherichia coli / Q000032:analysis*; D007478:Iontophoresis; D008967:Molecular Biology; D009711:Nucleotides / Q000032:analysis*; D010759:Phosphorus Isotopes; D012329:RNA, Bacterial / Q000032:analysis*; D012335:RNA, Ribosomal / Q000032:analysis / Q000378:metabolism; D012260:Ribonucleases / Q000378:metabolism; D012265:Ribonucleotides / Q000032:analysis; D012270:Ribosomes / Q000032:analysis*
chemical_list: D009711:Nucleotides; D010759:Phosphorus Isotopes; D012329:RNA, Bacterial; D012335:RNA, Ribosomal; D012265:Ribonucleotides; D012260:Ribonucleases