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| Substrate | Vmax (μmol min−1 mg−1) | Km (mM) | kcat (s−1) | kcat/Vmax (s−1 mM−1) |
| pNPA | 75±4 | 0.38±0.05 | 40.4±2.0 | 106±12 |
| pNPB | 8±1 | 0.2±0.1 | 4.4±0.3 | 14.7±3.3 |
Enzyme activities were determined at 30 °C in 50 mM sodium phosphate buffer, pH 7.0. Results are the mean value ± SD from three independent experiments.
