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Kinase activity of p38α in different phosphorylation states with ATF2Δ109 as a substrate (pH 7.0, 1 mm ATP, 10 mm Mg2+, 25°C)
| kcat | Km | kcat/Km | |
|---|---|---|---|
| s–1 | μm | m–1 s–1 | |
| p38α/pTpY | 4.7 ± 0.3 | 2.03 ± 0.34 | (2.3 ± 0.5) × 106 |
| p38α/pT | 3.8 ± 0.3 | 20.1 ± 3.2 | (1.9 ± 0.5) × 105 |
| p38α/pY | 2497 ± 382 | ||
| p38α | 691 ± 34 |
