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PHOTO‐OXIDATION OF N'‐FORMYLKYNURENINE AND TRYPTOPHAN PEPTIDES BY SUNLIGHT OR SIMULATED SUNLIGHT
Author(s) -
Pirie Antoinette,
Dilley K. J.
Publication year - 1974
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1111/j.1751-1097.1974.tb06486.x
Subject(s) - tryptophan , sunlight , chemistry , indole test , photochemistry , stereochemistry , biochemistry , amino acid , optics , physics
— N'‐Formylkynurenine, a photochemical breakdown product of tryptophan in proteins, was exposed to sunlight or simulated sunlight at neutral pH. N‐Formylanthranilic acid and 4‐hydroxyquinoline were identified in the reaction products. Neither has been previously described as a photo‐oxidation product of tryptophan‐containing compounds. They were not found after photo‐oxidation of glycyltryptophan or tryptophylglycine, although the indole ring was broken in both compounds.