title: Lac repressor can be fused to beta-galactosidase.
mesh_terms: D000595:Amino Acid Sequence; D001426:Bacterial Proteins / Q000032:analysis / Q000378:metabolism*; D002852:Chromatography, Ion Exchange; D012321:DNA-Directed RNA Polymerases; D004591:Electrophoresis, Polyacrylamide Gel; D004926:Escherichia coli / Q000201:enzymology / Q000378:metabolism*; D005696:Galactosidases / Q000096:biosynthesis / Q000378:metabolism*; D005796:Genes; D005809:Genes, Regulator; D005815:Genetic Code; D007785:Lactose / Q000378:metabolism*; D008970:Molecular Weight; D009154:Mutation; D009876:Operon; D010761:Phosphorus Radioisotopes; D011485:Protein Binding; D014176:Protein Biosynthesis; D011995:Recombination, Genetic
chemical_list: D001426:Bacterial Proteins; D010761:Phosphorus Radioisotopes; D012321:DNA-Directed RNA Polymerases; D005696:Galactosidases; D007785:Lactose