title: Mutant selection in the control region of the arg ECBH bipolar operon of Escherichia coli.
mesh_terms: D001120:Arginine / Q000378:metabolism*; D001665:Binding Sites; D002874:Chromosome Mapping; D004926:Escherichia coli / Q000378:metabolism*; D006639:Histidine / Q000378:metabolism; D008190:Lyases / Q000378:metabolism; D009154:Mutation; D009876:Operon; D009952:Ornithine; D012641:Selection, Genetic
chemical_list: D006639:Histidine; D001120:Arginine; D009952:Ornithine; D008190:Lyases