Table 2. Kinetic parameters of wild-type and mutated enzymes in the directions of hydrolysis and synthesis.
Enzymatic activity (μmol·min−1·mg−1) | ||||
---|---|---|---|---|
Km (μM) Hydrolysis | Hydrolysis | Synthesis | NAD/tetramer | |
Wild-type | 15.09 | 0.748 (100%) | 1.23 (100%) | 3.5 |
p.Y143C | 11.0 | 0.185 (25%) | 0.42 (34%) | 3.1 |
p.E115L | 11.47 | 0.500 (68%) | 0.75 (61%) | 4.6 |
p.W112stop | N/A | N/A | N/A | N/A |