| Domain | Name | Category | Type |
| IPR000559 | Formate-tetrahydrofolate ligase, FTHFS | Family | Family |
| IPR000672 | Tetrahydrofolate dehydrogenase/cyclohydrolase | Family | Family |
| IPR020628 | Formate-tetrahydrofolate ligase, FTHFS, conserved site | Site | Conserved site |
| IPR020630 | Tetrahydrofolate dehydrogenase/cyclohydrolase, catalytic domain | Domain | Domain |
| IPR020631 | Tetrahydrofolate dehydrogenase/cyclohydrolase, NAD(P)-binding domain | Domain | Domain |
| IPR027417 | P-loop containing nucleoside triphosphate hydrolase | Family | Homologous superfamily |
| IPR036291 | NAD(P)-binding domain superfamily | Family | Homologous superfamily |