| Domain | Name | Category | Type |
| IPR007115 | 6-pyruvoyl tetrahydropterin synthase/QueD family | Family | Family |
| IPR022469 | 6-pyruvoyl tetrahydropterin synthase, histidine active site | Site | Active site |
| IPR022470 | 6-pyruvoyl tetrahydropterin synthase, cysteine active site | Site | Active site |
| IPR038418 | 6-pyruvoyl tetrahydropterin synthase/QueD superfamily | Family | Homologous superfamily |