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Kinetic constants of PKA and kemptide with ATP, ATP-γS or ATP-dansyl as the cosubstrate.[a]
| Cosubstrate | KM [μm] | kcat [s–] | kcat/KM [s–1 mm–] |
|---|---|---|---|
| ATP | 24 ± 5 | 3.9 ± 0.5 | 160 |
| ATP-γS | 266 ± 19 | 6.5 ± 0.7 | 24 |
| ATP-dansyl | 23 ± 2 | 0.41 ± 0.05 | 18 |
Based on three independent trials with standard error shown.
