نتایج جستجو برای: s16xanthine oxidase
تعداد نتایج: 50417 فیلتر نتایج به سال:
mutations in any of four known nadph-oxidase components lead to cgd. x-linked cgd (x-cgd) is caused by defects in cybb, the gene that encodes gp91-phox. autosomal recessive (ar) cgd is caused by defects in the genes for p47 phox, p22-phox or p67-phox. the aim of this study was to screen the molecular defect in the fetus of an x-cgd carrier mother and postnatal confirmation of the results. in a ...
uricase or urate oxidase (urate:oxygen oxidoreductase, ec 1.7.3.3), a peroxisomal enzyme which is found in many bacteria, catalyzes the oxidative opening of the purine ring of urate to yield allantoin, carbon dioxide, and hydrogen peroxide. in this study, the phylogeny of urate oxidase (uricase) producing bacteria was studied based on gene sequences of 16s rrna and uricase protein. representati...
Rat liver peroxisomes contain three acyl-CoA oxidases: palmitoyl-CoA oxidase, which oxidizes the CoA esters of straight chain fatty acids and prostaglandins; pristanoyl-CoA oxidase, which oxidizes the CoA esters of 2-methyl-branched fatty acids (e.g. pristanic acid); and trihydroxycoprostanoyl-CoA oxidase, which oxidizes the CoA esters of the bile acid intermediates di- and trihydroxycoprostani...
Molybdenum-containing enzymes, aldehyde oxidase and xanthine oxidase, are important in the oxidation of N-heterocyclic xenobiotics. However, the role of these enzymes in the oxidation of drug-derived aldehydes has not been established. The present investigation describes the interaction of eleven structurally related benzaldehydes with guinea pig liver aldehyde oxidase and bovine milk xanthine ...
Most fungi possess several hydrogen peroxide-generating enzymes, glucose oxidase and pyranose oxidase. Pyranose oxidase can use glucose as its substrate to generate hydrogen peroxide. White rot fungi, which degrade diverse recalcitrant compounds, contain lignin-degrading enzymes, and lignin peroxidase and manganese peroxidase require hydrogen peroxide for their enzymatic reactions. In this stud...
It was possible to quantitate the terminal oxidase(s) reaction using bacterial resting-cell suspensions and demonstrate the usefulness of this reaction for taxonomic purposes. Resting-cell suspensions of physiologically diverse bacteria were examined for their capabilities of oxidizing N,N,N',N'-tetramethyl-p-phenylenediamine (TMPD) using a manometric assay. For organisms having this capability...
Apocynin has been used as an efficient inhibitor of the NADPH oxidase complex in experimental studies. NADPH oxidase was originally identified immune cells as playing an important microbicidal role. In cerebral ischemia, inflammation is increasingly being recognized as contributing negatively to neurological outcome, with NADPH-oxidase as an important source of superoxide. Recently, several for...
The chlorophyll-containing lamellar structures isolated from Anabaena variabilis have the ability to oxidize reduced mammalian cytochrome c in the dark. This activity is oxygen dependent and heat labile. As with other cytochrome oxidase preparations, activity is stimulated by detergents and is sensitive to the ionic strength of the assay solution. The cytochrome oxidase activity is not inhibite...
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