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Merck
모든 사진(1)

문서

X4875

Sigma-Aldrich

Xanthine Oxidase from bovine milk

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

동의어(들):

XOD, Xanthine:oxygen oxidoreductase

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About This Item

CAS Number:
효소 위원회 번호:
1.17.3.2.
EC Number:
MDL number:
UNSPSC 코드:
12352204
NACRES:
NA.54

생물학적 소스

bovine milk

유형

Grade IV

형태

ammonium sulfate suspension

특이 활성도

≥0.1 units/mg protein

저장 온도

2-8°C

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일반 설명

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

애플리케이션

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.

생화학적/생리학적 작용

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.

단위 정의

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.

물리적 형태

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

분석 메모

Protein determined by biuret

픽토그램

Health hazard

신호어

Danger

유해 및 위험 성명서

예방조치 성명서

Hazard Classifications

Resp. Sens. 1

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

개인 보호 장비

Eyeshields, Gloves, type N95 (US)


시험 성적서(COA)

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문서

Instructions for working with enzymes supplied as ammonium sulfate suspensions

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