Table 2.
Summary of pre-steady-state kinetics data for the OAS binding to the CS
| Enzyme | Rapid kinetics (association rate constant) kon (M−1 s−1) | Fold change (WT/Mutant) |
|---|---|---|
| HiCS | (4.0 ± 0.08) × 104 | 1 |
| HiM120A | (1.4 ± 0.08) × 102 | 286 |
| HiM96A | (1.4 ± 0.08) × 105 | 0.3 |
| HiM92A | (5 ± 0.08) × 102 | 80 |
| HiM120 AM92A | (2.0 ± 0.08) × 102 | 200 |
| HiM92 AM96A | (1.0 ± 0.08) × 103 | 40 |
| HiM92 AM96 AM120A | (1.9 ± 0.08) × 103 | 21 |
| StCS | (2.1 ± 0.08) × 104 | 1 |
| StM120A | (1.0 ± 0.08) × 103 | 21 |
| StM92A | (6.8 ± 0.17) × 102 | 31 |
| StM96A | (8.8 ± 0.5) × 104 | 0.2 |
| MtCS | (2.9 ± 0.05) × 104 | 1 |
| MtM120A | NA | |
| MtM92A | NP | |
| MtM96A | NP |
NA, data couldn’t be fitted; NP, could not be performed.