title: Evidence of two operators in the biotin locus of Escherichia coli.
mesh_terms: D001710:Biotin / Q000096:biosynthesis*; D002874:Chromosome Mapping; D003090:Coliphages; D004279:DNA, Viral / Q000378:metabolism; D004926:Escherichia coli / Q000378:metabolism*; D009693:Nucleic Acid Hybridization; D009876:Operon; D012329:RNA, Bacterial / Q000378:metabolism; D014158:Transcription, Genetic; D014161:Transduction, Genetic; D014316:Tritium
chemical_list: D004279:DNA, Viral; D012329:RNA, Bacterial; D014316:Tritium; D001710:Biotin