CAS: 9002-17-9
MDL: MFCD00082145
type: Grade I, ammonium sulfate suspension, ≥0.4 units/mg protein.
foreign activity: uricase ≤0.5%
shipped in: wet ice
Unit Definition: 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.
Physical form: Suspension in 2.3 M (NH4)2SO4 containing 1 mM sodium salicylate

Biochem/physiol Actions:
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.