Table 2.
Enzyme | kcat, min−1 | kcat/KM(CODD), µM−1min−1 | KI, µM | KM, µM |
---|---|---|---|---|
WT-PHD2 | 1.9 ± 0.1 | 2.4 ± 0.2 | - | 0.8 ± 0.1 |
Thr387→Ala | 44 ± 3 | 11 ± 1 | 38 ± 6 | 4.1 ± 0.7 |
Thr387→Asn | 0.9 ± 0.1 | 0.7 ± 0.1 | - | 1.4 ± 0.2 |
. Reactions contained (NH4)2Fe(SO4)2 (10 µM), ascorbic acid (1 mM), 2OG (100 µM), and CODD (2 – 50 µM) in 50 mM HEPES pH 7.00, 37.0 °C, ambient [O2](217 µM).