title: Control element found within structural gene.
mesh_terms: D004269:DNA, Bacterial / Q000235:genetics; D012321:DNA-Directed RNA Polymerases / Q000235:genetics; D004926:Escherichia coli / Q000235:genetics; D005786:Gene Expression Regulation; D009876:Operon
chemical_list: D004269:DNA, Bacterial; D012321:DNA-Directed RNA Polymerases