| Reaction |
| R00936 | 5,6,7,8-tetrahydrofolate:NAD+ oxidoreductase |
| R00937 | 5,6,7,8-tetrahydrofolate:NAD+ oxidoreductase |
| R00939 | 5,6,7,8-tetrahydrofolate:NADP+ oxidoreductase |
| R00940 | 5,6,7,8-tetrahydrofolate:NADP+ oxidoreductase |
| R02235 | dihydrofolate:NAD+ oxidoreductase |
| R02236 | dihydrofolate:NADP+ oxidoreductase |
| R11765 | tetrahydrobiopterin:NADP+ oxidoreductase (7,8-dihydrobiopterin-forming) |
|