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682151

Sigma-Aldrich

Xanthine Oxidase, Buttermilk

Native xanthine oxidase from buttermilk. Complex metalloprotein that catalyzes oxidative hydroxylation of a variety of aromatic heterocycles and simple aldehydes. Catalyzes the oxidation of xanthine to uric acid.

Synonym(s):

Xanthine Oxidase, Buttermilk

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About This Item

CAS Number:
Enzyme Commission number:
MDL number:
UNSPSC Code:
12352202
NACRES:
NA.54

Quality Level

form

liquid

specific activity

≥0.5 units/mg protein

manufacturer/tradename

Calbiochem®

storage condition

do not freeze

foreign activity

lactoperoxidase, none detected

shipped in

wet ice

storage temp.

2-8°C

General description

Native xanthine oxidase from buttermilk. Complex metalloprotein that catalyzes oxidative hydroxylation of a variety of aromatic heterocycles and simple aldehydes. Catalyzes the oxidation of xanthine to uric acid.
Native xanthine oxidase from buttermilk. Complex metalloprotein that catalyzes oxidative hydroxylation of a variety of aromatic heterocycles and simple aldehydes. Has an optimal pH of 4.6 and a pI of 5.3-5.4. Catalyzes the oxidation of xanthine to uric acid.

Packaging

Please refer to vial label for lot-specific concentration.

Warning

Toxicity: Standard Handling (A)

Unit Definition

One unit is defined as the amount of enzyme that will convert 1.0 µmol of xanthine to uric acid per min at 25°C, pH 7.5.

Physical form

Crystalline suspension in 60% ammonium sulfate.

Other Notes

McWhirter, R.B. and Hille, R. 1991. J. Biol. Chem.266, 23724.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Pictograms

Health hazard

Signal Word

Danger

Hazard Statements

Hazard Classifications

Resp. Sens. 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 3


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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