Xanthine Oxidase, Buttermilk, 1 X 50 U (682151-50U)

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. Crystalline suspension in 60% ammonium sulfate. McWhirter, R.B. and Hille, R. 1991. J. Biol. Chem.266, 23724. Toxicity: Standard Handling (A) 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.

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