Description
SPECIFICATIONS:
EC 1.7.3.3
Product name: Urate: oxygen oxidoreductase
Appearance: white amorphous powder lyophilized
Activity: Grade II, 4.0 U/mg-solid or more (containing approx.20% of
stabilizers)
Contaminants: Catalase ≤ 1.0%
Stabilizers: Borate, EDTA, non-ionic detergents
Stability: Stable at – 20 °C for at least 12 months
Molecular weight: Approx. 120,000
Structure: 4 subunits per molecule (Reactive SH groups are present in
the enzyme molecule)
Isoelectric point 5.4
Michaelis constants: 2.5×10-5M (Uric Acid)
Inhibitors: Heavy metal ions, cyanide, various urate analogs
Optimum pH: 8.5
Optimum temperature: 40℃
pH Stability: pH 7.0−11 (25℃, 20hr)
Thermal stability: Below 50 ℃ (pH 8.5, 10min)