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Photochemiluminescence of tryptophan-containing peptides and proteins during photooxidation. V. Effect of cysteine on the photochemiluminescence of glycyltryptophan solutions

Sapejinsky, I.I.; Dontsova, E.G.

Biofizika 20(1): 41-43

1975

ISSN/ISBN: 0006-3029
PMID: 1111622
Document Number: 89249
The action of temperature in the range of 10-40 degrees C on the main characteristics of photochemiluminescence in glycyltryptophane solutions at cystein addition is studied. The changes in photochemiluminescence upon cystein addition are connected with reaction of peptide peroxy free radicals with cystein. The rate constant of this reaction appeared to be 4 with 10-7 times exp (-9000 plus or minus 1000/kT) with M-1 sec-1.

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Sapezhinskiĭ, I.I.; Dontsova, E.G. 1974: Photochemiluminescence of tryptophan-containing peptides and proteins during photooxidation. 3. Effect of oxygen and potassium iodide on the photochemiluminescence of glycyltryptophan solutions Biofizika 19(1): 34-40
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