title: DNA structure and promoter function.
mesh_terms: D001483:Base Sequence; D004269:DNA, Bacterial / Q000032:analysis*; D012321:DNA-Directed RNA Polymerases / Q000378:metabolism; D004926:Escherichia coli / Q000235:genetics; D007763:Lac Operon; D009690:Nucleic Acid Conformation; D011401:Promoter Regions, Genetic
chemical_list: D004269:DNA, Bacterial; D012321:DNA-Directed RNA Polymerases