TABLE 2.
Steady state kinetic measurements on wild-type HPAO and mutants.a
Enzyme Form |
kcat (s−1) | kcat/Km[MeA] (µM−1 s−1) | kcat/Km[O2](µM−1 s−1) |
---|---|---|---|
Wt | 6.2 ± 0.5 | 0.18 ± 0.04 | 0.80 ± 0.10 |
L425F | 4.9 ± 0.1 | 0.15 ± 0.02 | 0.077 ± 0.007 |
I622Y | 5.3 ± 0.1 | 0.091 ± 0.01 | 0.69 ± 0.10 |
I639F | 5.3 ± 0.1 | 0.17 ± 0.02 | 1.2 ± 0.2 |
L643F | 4.5 ± 0.4 | 0.13 ± 0.02 | 0.76 ± 0.12 |
All measurements carried out at pH 8 and 25°C.