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X4376

Sigma-Aldrich

Xanthine Oxidase from bovine milk

lyophilized powder, 0.4-1.0 units/mg protein

Sinonimo/i:

XOD, Xanthine:oxygen oxidoreductase

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About This Item

Numero CAS:
9002-17-9
Classificazione EC (Enzyme Commission):
1.17.3.2.
Numero CE:
232-657-6
Numero MDL:
MFCD00082145
Codice UNSPSC:
12352204
NACRES:
NA.54

Origine biologica

bovine milk

Forma fisica

lyophilized powder

Attività specifica

0.4-1.0 units/mg protein

PM

283 kDa

Composizione

Protein, 10.0-25.0%

Temperatura di conservazione

2-8°C

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Descrizione generale

Formerly E.C. 1.1.3.22

Applicazioni

Xanthine Oxidase from bovine milk has been used as a source for superoxide generation. It has also been used as a model enzyme in the internally calibrated electrochemical continuous enzyme assay (ICECEA).

Azioni biochim/fisiol

The isoflavanoid genistein was shown to inhibit xanthine oxidase at concentrations between 0.1-4.0 μM and then activate xanthine oxidase at concentrations higher than 5 μM.
Xanthine Oxidase acts as a potential biomarker for oxidative stress. It is also implicated in tissue and vascular injuries such as liver damage, inflammatory diseases and chronic heart failure.
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

Contains 0.5% sodium salicylate.

Risultati analitici

Protein determined by biuret

Pittogrammi

Health hazard
GHS08

Avvertenze

Danger

Indicazioni di pericolo

H334

Consigli di prudenza

P261 - P284 - P501

Classi di pericolo

Resp. Sens. 1

Codice della classe di stoccaggio

11 - Combustible Solids

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)

Cerca il Certificati d'analisi (COA) digitando il numero di lotto/batch corrispondente. I numeri di lotto o di batch sono stampati sull'etichetta dei prodotti dopo la parola ‘Lotto’ o ‘Batch’.

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Genistein effect on xanthine oxidase activity.
Sumbayev VV.
Food And Chemical Toxicology, 73, 39-43 (2001)
Resistance of postharvest biocontrol yeasts to oxidative stress: a possible new mechanism of action
Castoria R, et al.
Phytopathology, 93(5), 564-572 (2003)
Kathrin S Zeller et al.
PloS one, 8(5), e64897-e64897 (2013-06-06)
Cells are exposed to several types of integrin stimuli, which generate responses generally referred to as "integrin signals", but the specific responses to different integrin stimuli are poorly defined. In this study, signals induced by integrin ligation during cell attachment
Massimiliano Magro et al.
Materials (Basel, Switzerland), 13(7) (2020-04-16)
Generally, enzyme immobilization on nanoparticles leads to nano-conjugates presenting partially preserved, or even absent, biological properties. Notwithstanding, recent research demonstrated that the coupling to nanomaterials can improve the activity of immobilized enzymes. Herein, xanthine oxidase (XO) was immobilized by self-assembly
Rapid electrochemical enzyme assay with enzyme-free calibration
Zhang M, et al.
Analytical Chemistry, 85(12), 6026-6032 (2013)
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