Name: Formaldehyde:NAD+ oxydoreductase
Appearance: White amorphous powder lyophilized
Activity: Grade Ⅱ, 1.0 U/mg-solid or more (containing approx. 70% stabilizers)
Contaminants: NADH oxidase ≤1.0×10-1 %
Stabilizers: Mg2+ Ca2+ bovine serum albumin, glycine, lysine
Stability: Stable at －20℃ for at least one year
Molecular weight: approx. 150,000 (by gel filtration)
Isoelectric point: 5.25
Michaelis constants: 8.0×10－5M (HCHO), 1.2×10－4M (NAD＋)
Structure: 2 subunits (75,000) per mol of enzyme
Inhibitors: Chelating agents, Ni2+, Cd2+, Hg2+, PCMB, ionic detergents
Optimum pH: 9.0
Optimum temperature: 40℃
pH Stability: pH 8.0－10.0 (30℃, 16hr)
Thermal stability: below 40℃ (pH 7.5, 30min)
EC # 1.2.1.46
Used in In Vitro Diagnostic tests and Life Sciences, Research & Development
< -20ºC