TABLE 1.
Kinetic parameters of PUFA substrates with 15-lipoxygenase
Substrates (5–100 μm) were incubated with 39.8 units/ml of 15-lipoxygenase, 4.52 × 10-3% (v/v) Tween 20 in oxygen-saturated 0.05 m sodium borate buffer (pH 9.0), and products were quantified using absorbance at 236 nm. Curve fits were created using the Michaelis-Menten model.
| Parameter | DPAn-3 | DPAn-6 | DHA |
|---|---|---|---|
| Vmax (μm/min) | 672.9 ± 31.8 | 487.1 ± 13.9 | 481.9 ± 21.4 |
| Km (μm) | 36.2 ± 4.1 | 14.3 ± 1.5 | 20.4 ± 2.8 |
| Vmax/Km (min-1) | 18.6 ± 2.3 | 34.1 ± 3.7 | 23.6 ± 3.4 |
| R2 | 0.93 | 0.90 | 0.85 |