E G Dontsova

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Enzyme superoxide dismutase is shown to decrease photo- and X-ray chemoluminescence when added both before and after irradiation. The relationship was established between chemoluminescence yield and the enzyme concentration. Chemoluminescence is supposed to be initiated by the reaction of free radicals of the peptide (protein) with superoxide(More)
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(More)
Effect of dyes of different classes on characteristics of X-chemoluminescence of human serum albumin solutions is studied. Intensification of lumininescence by the addition of uranin, eosin, tetrachlorfluorescein and erythrozan was found. The process of luminescence intensification with the addition of uranine was thoroughly studied (kinetic regularities,(More)
Regularities of radiation oxidation (oxygen absorption for irradiation) and X-ray chemoluminescence of human serum albumin solutions have been studied. The oxidative rate was shown to be proportional to chemoluminescence intensity under various experimental conditions. the yield values for radiation oxidation of natural amino acids, glycyl-tryptophane and(More)
The method of roentgenochemoluminescence was used to study the reactions of alcohol radicals with tryptophanyl residues of protein. These radicals exhibited a high reactivity. In a series of alcohol radicals and 3-oxy-pyridine derivatives, a positive correlation was revealed between the rate of the reaction of radicals with the macromolecule and the(More)