61152
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- Chinese name: Catalase
- English name: Catalase
This enzyme is useful for removing hydrogen peroxide in clinical analysis.
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- Application: Biodiagnostic
- Product category: Enzyme
- Biochemical diagnosis: Colorimetric method
Specifications
| Appearance | yellowish green to brown lyophilizate | |
| Activity | ≧12,000 U/mg | |
| Stabilizer | lactitol | |
| Storage condition | below -20℃ |
Characteristics
| Molecular weight | ca. 240 kDa (gel filtration) |
| Structure | 4 identical tetrahedrally arranged subunits of ca. 60 kDa each, 4 ferriprotoporphyrin groups per mole of enzyme |
| pH Optimum | 6.5–8.0 |
| pH Stability | 4.0–9.5 |
| Optimum temperature | ca. 30℃ |
| Thermal stability | below 55℃ |
| Inhibitors | azide, cyanide, cyanogenbromide, hydroxylamine, ascorbate, nitrite, fluoride, acetate, formate, ethanol, methanol |
Applications
The enzyme is useful for removal of hydrogen peroxide in clinical analysis.
References
Nicholls, P. and Schonbaum, G. R., “The Enzyme,” Vol. 8 (2nd ed.), Academic Press, New York and London, 1963, pp. 147–225. Bergmeyer, H. U., “Methods of Enzymatic Analysis,” Vol. 3 (3rd ed.), Verlag Chemie, Weinheim, Germany, 1983, pp. 273–286.
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