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X4875

Sigma-Aldrich

Xanthine Oxidase from bovine milk

Grade IV, ammonium sulfate suspension, ≥0.1 units/mg protein

Sinonimo/i:

XOD, Xanthine:oxygen oxidoreductase

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About This Item

Numero CAS:
Classificazione EC (Enzyme Commission):
1.17.3.2.
Numero CE:
Numero MDL:
Codice UNSPSC:
12352204
NACRES:
NA.54

Origine biologica

bovine milk

Tipo

Grade IV

Forma fisica

ammonium sulfate suspension

Attività specifica

≥0.1 units/mg protein

Temperatura di conservazione

2-8°C

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Descrizione generale

Research area: Cell CycleXanthineoxidase (XO) is a homodimer. It is made up of two sub-units each made up of onemolybdenum and two iron-sulphur (2Fe-2S) centers.
Formerly E.C. 1.1.3.22

Applicazioni

Xanthine Oxidase from bovine milk has been used in superoxide dismutaseactivity assay.Xanthine oxidase may be suitable for producing amperometric biosensors and designing-flavonoid-type inhibitors against XO for treating inflammatory diseases, gout, and hyperuricemia. It may also be used in the synthesis of superoxide because of aldehyde oxidation.

Azioni biochim/fisiol

Although xanthine oxidase is found widely distributed in multiple tissues, it is highly expressed in endothelial and epithelial cells. Its expression was also increased in infected tissues where it was shown to have an anti-microbial effect due to its ability to generate reactive oxygen species. Xanthineoxidase plays an important role in catalyzing the hydroxylation ofhypoxanthine to Xanthine. Later, xanthine is converted to uric acid isexcreted by the kidneys.
Xanthine oxidase is a molybdenum-containing enzyme that is found in the cytosol, and may be strongly inhibited by flavonoids. It plays a vital role in the metabolism of some drugs, as well as purines and pyrimidines. It is also known to be a biological source of reactive oxygen species.

Definizione di unità

One unit will convert 1.0 μmole of xanthine to uric acid per min at pH 7.5 at 25 °C. Approx. 50% of the activity is obtained with hypoxanthine as substrate.

Stato fisico

Suspension in 2.3 M (NH4)2SO4 containing 1 mM sodium salicylate

Risultati analitici

Protein determined by biuret

Pittogrammi

Health hazard

Avvertenze

Danger

Indicazioni di pericolo

Consigli di prudenza

Classi di pericolo

Resp. Sens. 1

Codice della classe di stoccaggio

10 - Combustible liquids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Gloves, type N95 (US)


Certificati d'analisi (COA)

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Articoli

Instructions for working with enzymes supplied as ammonium sulfate suspensions

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