title: The effect of D-tryptophan upon induced beta-galactosidase synthesis in Escherichia coli.
mesh_terms: D004790:Enzyme Induction; D004926:Escherichia coli / Q000187:drug effects / Q000201:enzymology*; D005696:Galactosidases / Q000037:antagonists & inhibitors / Q000096:biosynthesis*; D007700:Kinetics; D009154:Mutation; D013237:Stereoisomerism; D013997:Time Factors; D014364:Tryptophan / Q000494:pharmacology*
chemical_list: D014364:Tryptophan; D005696:Galactosidases