| Domain | Name | Category | Type |
| IPR000283 | NADH:ubiquinone oxidoreductase, 75kDa subunit, conserved site | Site | Conserved site |
| IPR001041 | 2Fe-2S ferredoxin-type iron-sulfur binding domain | Domain | Domain |
| IPR006656 | Molybdopterin oxidoreductase | Domain | Domain |
| IPR006963 | Molybdopterin oxidoreductase, 4Fe-4S domain | Domain | Domain |
| IPR010228 | NADH:ubiquinone oxidoreductase, subunit G | Family | Family |
| IPR015405 | NADH-quinone oxidoreductase, chain G, C-terminal | Domain | Domain |
| IPR019574 | NADH:ubiquinone oxidoreductase, subunit G, iron-sulphur binding | Domain | Domain |
| IPR036010 | 2Fe-2S ferredoxin-like superfamily | Family | Homologous superfamily |