60111
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- 中文名稱: 肌酐酶
- 英文名稱: Creatininase (C1-E)
The enzyme is useful for the determination of creatinine in clinical analysis.
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- 應 用: 生化診斷
- 產品類別: 酶
- 生化診斷: 比色法
規格
| Appearance | white lyophilizate | |
| Activity | 600-750 U/mg | |
| Contaminants | Catalase ≦0.5％ | |
| Stabilizer | sucrose | |
| Storage condition | below -20℃ |
特性
| Molecular weight | ca. 170 kDa (gel filtration) |
| Structure | 6 subunits of 28 kDa (SDS-PAGE) |
| Isoelectric point | 4.8 |
| Michaelis constant | 3.4×10-2M (creatinine) |
| 4.3×10-2M ((creatine) | |
| pH Optimum | 6.5–7.0 |
| pH Stability | 7.0–11.0 |
| Optimum temperature | 60–65℃ |
| Thermal stability | below 60℃ |
| Stability (liquid form) | stable at 37°C for at least two weeks |
| Stability (powder form) | stable at 30°C for at least one month |
| Inhibitors | Hg2+ |
| Activators | Mg2+，Mn2+ |
應用
The enzyme is useful for the determination of creatinine in clinical analysis.
參考文獻
Suzuki, M. and Yoshida, M. (1984)
A new enzymatic serum creatinine measurement based on an endogenous creatine-eliminating system
Clinica Chimica Acta, 143, 147–155.
