Horseradish peroxidase. XXXIV. Oxidation of compound II to I by periodate and inorganic anion radicals.
Can J Biochem, 1979/8;57(8):1080-3.
PMID: 232001
Abstract
The one-electron oxidation of horseradish peroxidase compound II to compound I by sodium periodate was observed. The bimolecular rate constant for the NaIO4--compound II interaction is equal to 9.5 +/- 1 x 10(-3) M-1s-1 at room temperature. Irradiation, using ultraviolet light, of the solution containing compound II and persulfate in the presence of bicarbonate, chloride, or bromide, leads ot the fast accumulation of compound I due to the oxidative action of SO4, CO3, Cl2, and Br2 anion radicals, which are products of the photolysis.
MeSH terms
Bicarbonates; Bromides; Chlorides; Horseradish Peroxidase; Oxidation-Reduction; Periodic Acid; Peroxidases; Peroxides; Photolysis; Sodium Compounds; Spectrum Analysis; Sulfates; Sulfuric Acids; Ultraviolet Rays
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