STUDIES ON THE AEROBIC PHOTOOXIDATION OF CYSTEINE USING RIBOFLAVIN ASA SENSITIZER - EVIDENCE FOR THE PHOTOGENERATION OF A SUPEROXIDE ANIONAND HYDROGEN-PEROXIDE
B. Sarkar et al., STUDIES ON THE AEROBIC PHOTOOXIDATION OF CYSTEINE USING RIBOFLAVIN ASA SENSITIZER - EVIDENCE FOR THE PHOTOGENERATION OF A SUPEROXIDE ANIONAND HYDROGEN-PEROXIDE, Biological & pharmaceutical bulletin, 20(8), 1997, pp. 910-912
The riboflavin sensitized oxidation of cysteine under an aerobic condi
tion was investigated, The effects of various scavengers, such as supe
roxide dismutase, catalase, mannitol, sodium azide and potassium ferro
cyanide (an electron donor), on the photooxidation were determined, A
reaction mechanism involving the superoxide anion is proposed for the
photooxidation of cysteine to cysteic acid.