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Abstract:
Equations are proposed for the estimation of quantum yields for cystine destruction and disulfide protein inactivation during u.v.-irradiation in acidic and neutral solutions. The formulas permit a discussion of energy transfer from excited aromatic amino acids to cystines and/or of chemical reactions between excited tryptophans or tyrosines and cystines. The results are discussed with regard to general aspects of the photo-biochemistry of enzymes.
