Description
SPECIFICATIONS
EC 1.1.3.17
Appearance : Yellowish amorphous powder, lyophilized
Activity : > 10 U/mg-solid (contains approx. 20% of stabilizers)
Contaminant : Catalase : ≤ 1.0 × 10-2 %
Stabilizers : EDTA, BSA , Amino acids
Stability : Stable at – 20℃ for at least 12 months
Molecular weight : approx. 95,000
Isoelectric point : 4.1 ± 0.1
Michaelis constants : 2.84×10-3 M (Choline), 5.33×10-3M (Betaine aldehyde)
Structure : 1 mol of FAD is covalently bound to 1 mol of the enzyme
Inhibitors : p-Chloromercuribenzoate, Cu-2+ Co2+, Hg2+, Ag+
Optimum pH : 8.0 – 8.5
Optimum temperature : 40 – 45 ℃
pH Stability : pH 7.0 – 9.0 (30℃, 2 hr)
Thermal stability : below 37℃ (pH 7.5, 10min