1.5.1.37 FAD - 692838 1.5.1.37 FAD enzyme solated with some FAD 711238 1.5.1.37 FMN 12% of the activity with FAD 692838 1.5.1.37 Lumiflavin 6% of the activity with FAD 692838 1.5.1.37 NAD+ - 742137 1.5.1.37 NADH - 724532, 742137 1.5.1.37 NADH no activity with NADPH 692838, 711238 1.5.1.37 NADH the enzyme does not use NADPH as substrate 715349 1.5.1.37 riboflavin 9% of the activity with FAD 692838