The photo-oxidative effect of sunlight on the tryptophan residues of proteins and on free tryptophan is described. Evidence is presented that the indole ring is split to yield N′-formylkynurenine. The possible relation of this photo-oxidative change to changes in the lens proteins of brown cataracts is discussed.
Research Article|November 01 1971
Formation of N′-formylkynurenine in proteins from lens and other sources by exposure to sunlight
Biochem J (1971) 125 (1): 203-208.
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Antoinette Pirie; Formation of N′-formylkynurenine in proteins from lens and other sources by exposure to sunlight. Biochem J 1 November 1971; 125 (1): 203–208. doi: https://doi.org/10.1042/bj1250203
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