Degradation Rates of H2O2 for Catalase and GPO in Human Erythrocytes at Different H2O2 Concentrations
| H2O2 (mol/L) . | Degradation Rates of H2O2 (mol × s−1 × g−1)* . | kgpo /kcat . | |
|---|---|---|---|
| . | Catalase . | GPO . | . |
| 10−7 | 4.5 × 10−8 ± 1.1 × 10−8 | 3.9 × 10−9 ± 0.8 × 10−9 | 7.8% |
| 10−6 | 5.3 × 10−7 ± 0.7 × 10−7 | 4.0 × 10−8 ± 1.7 × 10−8 | 8.0% |
| 10−5 | 4.9 × 10−6 ± 0.6 × 10−6 | 1.5 × 10−7 ± 0.5 × 10−7 | 3.0% |
| 10−4 | 4.4 × 10−5 ± 0.9 × 10−5 | 5.0 × 10−7 ± 0.9 × 10−7 | 1.0% |
| H2O2 (mol/L) . | Degradation Rates of H2O2 (mol × s−1 × g−1)* . | kgpo /kcat . | |
|---|---|---|---|
| . | Catalase . | GPO . | . |
| 10−7 | 4.5 × 10−8 ± 1.1 × 10−8 | 3.9 × 10−9 ± 0.8 × 10−9 | 7.8% |
| 10−6 | 5.3 × 10−7 ± 0.7 × 10−7 | 4.0 × 10−8 ± 1.7 × 10−8 | 8.0% |
| 10−5 | 4.9 × 10−6 ± 0.6 × 10−6 | 1.5 × 10−7 ± 0.5 × 10−7 | 3.0% |
| 10−4 | 4.4 × 10−5 ± 0.9 × 10−5 | 5.0 × 10−7 ± 0.9 × 10−7 | 1.0% |
Degradation rates are related to gram hemoglobin (g−1). Means ± standard deviations were calculated from samples of five healthy volunteers.