TABLE 1.
Kinetic parameters of d-AATs
Enzyme | wXXcXik | Mean ± SD
|
kcat/Km,d-Ala (mM · s)−1 | kcat/Km,α-KG (mM · s)−1 | ||
---|---|---|---|---|---|---|
kcat (s−1) | Km,d-Ala (mM) | Km,α-KG (mM) | ||||
YM1 | 140-LRcD-143 | 134 ± 2 | 2.5 ± 0.2 | 3.1 ± 0.1 | 52 | 42 |
SK1 | 144-EYcY-147 | 47 ± 2 | 2.5 ± 0.1 | 0.71 ± 0.1 | 18 | 63 |
KLS1 | 144-EYcY-147 | 55 ± 3 | 1.4 ± 0.2 | 0.26 ± 0.1 | 38 | 203 |
Mutant SK1 | 144-LRcD-147 | 79 ± 6 | 3.4 ± 0.3 | 1.4 ± 0.3 | 22 | 53 |