| Domain | Name | Category | Type |
| IPR001308 | Electron transfer flavoprotein alpha subunit/FixB | Family | Family |
| IPR014729 | Rossmann-like alpha/beta/alpha sandwich fold | Family | Homologous superfamily |
| IPR014730 | Electron transfer flavoprotein, alpha/beta-subunit, N-terminal | Domain | Domain |
| IPR014731 | Electron transfer flavoprotein, alpha subunit, C-terminal | Domain | Domain |
| IPR018206 | Electron transfer flavoprotein subunit alpha, conserved site | Site | Conserved site |
| IPR029035 | DHS-like NAD/FAD-binding domain superfamily | Family | Homologous superfamily |
| IPR033947 | Electron transfer flavoprotein, alpha subunit, N-terminal | Domain | Domain |