title: The activity of individual molecules of hybrid  -galactosidase reconstituted from the wild-type and an inactive-mutant enzyme.
mesh_terms: D001665:Binding Sites; D004926:Escherichia coli / Q000201:enzymology*; D005696:Galactosidases / Q000032:analysis*; D006824:Hybridization, Genetic; D046911:Macromolecular Substances; D009154:Mutation
chemical_list: D046911:Macromolecular Substances; D005696:Galactosidases