title: Spectral studies with histidyl-tryptophan peptides.
mesh_terms: D005453:Fluorescence; D006639:Histidine / Q000032:analysis*; D007093:Imidazoles / Q000032:analysis; D007211:Indoles / Q000032:analysis; D009536:Niacinamide / Q000032:analysis; D010455:Peptides / Q000032:analysis*; D011726:Pyridinium Compounds / Q000032:analysis; D013057:Spectrum Analysis; D014364:Tryptophan / Q000032:analysis*
chemical_list: D007093:Imidazoles; D007211:Indoles; D010455:Peptides; D011726:Pyridinium Compounds; D009536:Niacinamide; D006639:Histidine; D014364:Tryptophan