| Domain | Name | Category | Type |
| IPR001937 | Galactose-1-phosphate uridyl transferase, class I | Family | Family |
| IPR005849 | Galactose-1-phosphate uridyl transferase, N-terminal | Domain | Domain |
| IPR005850 | Galactose-1-phosphate uridyl transferase, C-terminal | Domain | Domain |
| IPR019779 | Galactose-1-phosphate uridyl transferase, class I His-active site | Site | Active site |
| IPR036265 | HIT-like superfamily | Family | Homologous superfamily |