FIG. 8.
Effect of temperature on rNoxA2 activity. The activity of rNoxA2 (1 μg) was monitored at 340 nm for NADH oxidation at the temperatures indicated. The enzyme was assayed in 50 mM NaPi (pH 7.6, as determined at 55°C), 0.2% CHAPS, 20 μM FAD, and saturating 200 μM NADH. (Inset) An average of maximum velocities determined by the method of Arrhenius.