Table 1.
Variant | KM (µM) |
kcat (min−1) |
kcat/KM (min−1/µM) |
Molar Ratio of DTNB binding |
Molar Ratio of BAClMK binding |
---|---|---|---|---|---|
wild type | 333 ± 21 | 1.5 ± 0.001 | 4.5 × 10−3 | 0 | 0 |
E19C | 321 ± 39 | 1.0 ± 0.10 | 3.1 × 10−3 | 1 | 1 |
L31C | 343 ± 26 | 1.0 ± 0.23 | 2.9 × 10−3 | 1 | 0.8 |
W83C | N.D. | N.D. | - | 0.2 | N.T. |
E86C | 290 ± 51 | 0.8 ± 0.20 | 2.7 × 10−3 | 1 | 1 |
N105C | 271 ± 23 | 1.6 ± 0.03 | 5.9 × 10−3 | 1 | 1 |
T111C | N.D. | N.D. | - | 1 | N.T. |
L115C | N.D. | N.D. | - | 1 | N.T. |
A125C | 235 ± 45 | 1.1 ± 0.30 | 4.6 × 10−3 | 1 | 1 |
N.D. - not detectable; N.T. – not tested