Description
SPECIFICATIONS
EC: 1.1.3.4
Name β-D-Glucose:oxygen 1-oxydoreductase
Appearance Yellowish amorphous powder lyophilized
Activity Grade II, 100 U/mg-solid or more (containing approx. 50% of stabilizers)
Contaminants Catalase ≤ 3.0%
Stabilizers Potassium gluconate, sodium glutamate
Stability Stable at －20℃ for at least 12 months
Molecular weight approx. 153,000
Michaelis constants 3.3×10-2 M (β-D-Glucose) 6.1×10-2M (2-Deoxyglucose)
Structure Glycoprotein with 2 moles of FAD
Inhibitors p-Chloromercuribenzoate, heavy metal ions
Optimum pH 4.5
Optimum temperature 40－50 ℃
pH Stability pH 4.5－6.0 (30 ℃, 20hr)
Thermal stability below 50 ℃ (pH 5.7, 1hr)