| Domain | Name | Category | Type |
| IPR001288 | Translation initiation factor 3 | Family | Family |
| IPR019814 | Translation initiation factor 3, N-terminal | Domain | Domain |
| IPR036787 | Translation initiation factor 3 (IF-3), N-terminal domain superfamily | Family | Homologous superfamily |
| IPR036788 | Translation initiation factor 3 (IF-3), C-terminal domain superfamily | Family | Homologous superfamily |