| Cat# | DIA-431 |
| Source | Microorganism |
| Form | Freeze dried powder |
| Activity | ≥ 4 U/mg |
| Unit Definition | One unit (U) is defined as the amount of enzyme which produces 1 μmol of NADH per min at 37 °C and pH 6.0 under the conditions described below. |
| Storage | Below –20 °C |
| Enzyme Commission Number | EC 3.5.1 |
| pH Stability | 5.5–9.0 |
| Michaelis Constant | 5.5 × 10-4 M (L-glutamine) |
| Optimum pH | ca. 7.0 |
| Optimum temperature | ca. 65°C |
| Thermal stability | Below 50 °C |
| Contaminants | Catalase ≦ 3.0 U/U% |
| Applications | For the determination of L-glutamine in clinical analysis. |
| Appearance | Light gray lyophilizate |
| Molecular Weight | ca. 58 kDa (Gel filtration) |
| Notes | Expiration date: Liquid: stable at 37 °C for at least four days Powder: stable at 30 °C for at least two weeks |
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