title: Genetic and enzymatic experiments relating to the quaternary structure of beta-galactosidase.
mesh_terms: D001665:Binding Sites; D002845:Chromatography; D002874:Chromosome Mapping; D004926:Escherichia coli / Q000201:enzymology; D005696:Galactosidases / Q000037:antagonists & inhibitors; D005796:Genes; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D007785:Lactose; D008970:Molecular Weight; D009154:Mutation; D011134:Polysaccharides; D011487:Protein Conformation; D014508:Urea / Q000494:pharmacology
chemical_list: D011134:Polysaccharides; D014508:Urea; D005696:Galactosidases; D007785:Lactose