Table 1.
kcat (s−1) | KM, NAD+(mM) | KM, malate (mM) | kcat/KM, NAD+ (S−1 mM−1) | kcat/KM, malate (S−1 mM−1) | |
---|---|---|---|---|---|
eMDH WT | 20.2 ± 0.4 | 0.23 ± 0.02 | 2.61 ± 0.20 | 87.8 | 7.74 |
eMDH 99AcK | 51.2 ± 1.3 | 0.25 ± 0.07 | 2.32 ± 0.32 | 204.8 | 22.07 |
eMDH 140AcK | 74.3 ± 1.1 | 0.26 ± 0.06 | 2.54 ± 0.64 | 285.8 | 29.25 |
hMDH2 WT | 69.6 ± 2.9 | 0.16 ± 0.01 | 0.24 ± 0.08 | 435.0 | 290.0 |
hMDH2 307AcK | 178.9 ± 3.1 | 0.12 ± 0.04 | 0.20 ± 0.12 | 1490.8 | 894.5 |
The mean values and standard errors were calculated based on three replicates. The parameters were determined by nonlinear regression with software GraFit (Erithacus Software).