[Superoxide dismutase activity and photosensitizing properties of 2,5-dihydroxybenzolsulfonate].
2,5-dihydroxybenzolsulphonate was shown to actively interact with the superoxide radical O2-. formed under UV-radiation of glycyltryptophan aqueous solutions or under visible light illumination of glycyltryptophan and riboflavine. The constant of the rate of reaction of 2,5-dihydroxybenzolsulphonate with O2-. was determined to be equal to 1.3 X 10(9) M-1s-1. A photosensitized effect of 2,5-dihydroxybenzolsulphonate under illumination with the light with 280 nm was found. The sensitization efficiency of glycyl-tryptophan oxidation increases when the experiments are carried out in the oxygen atmosphere.
Lozovskaia
E L
EL
Kaplunskiĭ
G D
GD
Sapezhinskiĭ
I I
II
D001557:Benzenesulfonates / Q000737:chemistry*; D002123:Calcium Dobesilate; D005609:Free Radicals; D049449:Luminescence; D010100:Oxygen / Q000737:chemistry; D010777:Photochemistry; D013482:Superoxide Dismutase / Q000737:chemistry* / Q000528:radiation effects; D014466:Ultraviolet Rays
D001557:Benzenesulfonates; D005609:Free Radicals; D002123:Calcium Dobesilate; D013482:Superoxide Dismutase; D010100:Oxygen
Superoksiddismutaznaia aktivnost' i fotosensibiliziruiushchie svoĭstva 2,5-digidroksibenzolsul'fonata.