title: Lac repressor and lac operator.
mesh_terms: D000595:Amino Acid Sequence; D001426:Bacterial Proteins / Q000302:isolation & purification / Q000378:metabolism; D001665:Binding Sites; D002874:Chromosome Mapping; D002876:Chromosomes, Bacterial / Q000187:drug effects / Q000378:metabolism; D003062:Codon; D004926:Escherichia coli / Q000378:metabolism*; D005696:Galactosidases / Q000378:metabolism; D005815:Genetic Code; D007785:Lactose / Q000378:metabolism*; D046911:Macromolecular Substances; D009153:Mutagens / Q000494:pharmacology; D009154:Mutation; D010641:Phenotype; D011485:Protein Binding; D012265:Ribonucleotides / Q000032:analysis
chemical_list: D001426:Bacterial Proteins; D003062:Codon; D046911:Macromolecular Substances; D009153:Mutagens; D012265:Ribonucleotides; D005696:Galactosidases; D007785:Lactose