Name: Urate: oxygen oxidoreductase
Appearance: white amorphous powder lyophilized
Activity: Grade II, 4.0U/mg-solid or more (containing approx.20% of stabilizers)
Contaminants: Catalase ≤ 1.0%
Stabilizers: Borate, EDTA, nonionic detergents
Stability: Stable at －20℃ for at least one year
Molecular weight: approx. 120,000
Structure: 4 subunits per molecule (Reactive SH groups are present in the enzyme molecule)
Isoelectric point: 5.4
Michaelis constant: 2.5×10-5 M (Uric acid)
Inhibitors: Heavy metal ions, cyanide,various urate analogs
Optimum pH: 8.5
Optimum temperature: 40℃
pH Stability: pH 7.0－11.0 (25℃, 20hr)
Thermal stability: below 50℃ (pH 8.5, 10min)
EC # 1.7.3.3
Used in In Vitro Diagnostic tests and Life Sciences, Research & Development
< -20ºC