title: Heterogeneity of the two tryptophanyl residues in the lac repressor of Escherichia coli.
mesh_terms: D000178:Acrylamides; D004926:Escherichia coli / Q000032:analysis*; D007700:Kinetics; D009154:Mutation; D011485:Protein Binding; D011487:Protein Conformation; D012097:Repressor Proteins; D013045:Species Specificity; D013050:Spectrometry, Fluorescence; D014157:Transcription Factors; D014364:Tryptophan
chemical_list: D000178:Acrylamides; D012097:Repressor Proteins; D014157:Transcription Factors; D014364:Tryptophan