Activation of Chemiluminescent Oxidations Catalyzed by Peroxidase and the Differentiation of Peroxidase Agents.
نویسندگان
چکیده
منابع مشابه
Inhibition of peroxidase-catalyzed oxidations.
Chance (1) has proposed that the peroxidase-catalyzed oxidation of diiydroxyfumaric acid proceeds in two steps. The first step is the oxidation of the hydrogen donor by oxygen, the reaction being catalyzed by a manganese-activated peroxidase and accompanied by the production of hydrogen peroxide. The second step is the oxidation of additional hydrogen donor by hydrogen peroxide, this reaction a...
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The atypical two-electron oxidation of thioanisole and its p-methyl, p-methoxy, and p-nitro analogues by horseradish peroxidase, contrary to earlier reports, stereoselectively produces the (8) sulfoxides in 6070% enantiomeric excess. Horseradish peroxidase reconstituted with 6-meso-ethylheme has little peroxidase (guaiacol oxidizing) activity, as previously reported, but exhibits increased sulf...
متن کاملThe oxidation of indole derivatives catalyzed by horseradish peroxidase is highly chemiluminescent.
The indole moeity is present in many substances of biological occurrence. Its metabolism, in most cases, involves an oxidative pathway. This study reports the oxidation of a series of indole derivatives, including several of biological origin, catalyzed by horseradish peroxidase in the presence of H2O2. Chemiluminescence emission was observed in most cases and its intensity and spectral charact...
متن کاملHorseradish peroxidase catalyzed and electrochemical oxidations of 2-thiouracil-A comparison
Horseradish peroxidase (type VIII) catalyzed and electrochemical oxidations of 2-thiouracil have been studied in phosphate buffer of pH 7.20 (JL==l.O M) at an ambient temperature of 25±2°C. The peroxidase catalyzed oxidation has been initiated by using hydrogen peroxide and electrooxidation carried out at pyrolytic graphite electrode. The UV-absorbing intermediates generated in both the oxidati...
متن کاملCharacterization of the N-demethylation reactions catalyzed by horseradish peroxidase.
The hydroperoxide-supported N-demethylation reactions catalyzed by horseradish peroxidase have been characterized in detail. The ethyl hydroperoxide-supported N-demethylation of N,N-dimethylaniline by horseradish peroxidase resulted in the formation of equimolar amounts of N-methylaniline and formaldehyde with no other products detectable by high performance liquid chromatography analysis of th...
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ژورنال
عنوان ژورنال: Acta Chemica Scandinavica
سال: 1965
ISSN: 0904-213X
DOI: 10.3891/acta.chem.scand.19-0313