| Domain | Name | Category | Type |
| IPR011766 | Thiamine pyrophosphate enzyme, C-terminal TPP-binding | Domain | Domain |
| IPR012000 | Thiamine pyrophosphate enzyme, central domain | Domain | Domain |
| IPR012001 | Thiamine pyrophosphate enzyme, N-terminal TPP-binding domain | Domain | Domain |
| IPR029035 | DHS-like NAD/FAD-binding domain superfamily | Family | Homologous superfamily |
| IPR029061 | Thiamin diphosphate-binding fold | Family | Homologous superfamily |