title: Protection of specific sites in 23 S and 5 S RNA from chemical modification by association of 30 S and 50 S ribosomes.
mesh_terms: D000447:Aldehydes / Q000494:pharmacology; D001483:Base Sequence; D001665:Binding Sites / Q000187:drug effects; D002074:Butanones / Q000494:pharmacology; D004586:Electrophoresis; D004926:Escherichia coli / Q000187:drug effects; D009693:Nucleic Acid Hybridization; D012329:RNA, Bacterial; D012335:RNA, Ribosomal; D012265:Ribonucleotides / Q000032:analysis; D012270:Ribosomes / Q000187:drug effects
chemical_list: D000447:Aldehydes; D002074:Butanones; D012329:RNA, Bacterial; D012335:RNA, Ribosomal; D012265:Ribonucleotides