| IPR012027 | Formylmethanofuran dehydrogenase, subunit A | Family |
| IPR013108 | Amidohydrolase 3 | Domain |
| IPR050378 | Metallo-dependent Hydrolases Superfamily | Family |
| IPR011059 | Metal-dependent hydrolase, composite domain superfamily | Homologous Superfamily |
| IPR032466 | Metal-dependent hydrolase | Homologous Superfamily |
| IPR017900 | 4Fe-4S ferredoxin, iron-sulphur binding, conserved site | Conserved Site |
| IPR045220 | Oxidoreductase FRHB/FDHB/HCAR-like | Family |
| IPR007516 | Coenzyme F420 hydrogenase/dehydrogenase beta subunit, N-terminal | Domain |
| IPR017896 | 4Fe-4S ferredoxin-type, iron-sulphur binding domain | Domain |
| IPR007525 | Coenzyme F420 hydrogenase/dehydrogenase beta subunit, C-terminal | Domain |
| IPR006656 | Molybdopterin oxidoreductase | Domain |
| IPR050123 | Prokaryotic molybdopterin-containing oxidoreductase | Family |
| IPR016457 | Formylmethanofuran dehydrogenase, subunit B | Family |
| IPR036485 | Glutamate synthase, alpha subunit, C-terminal domain superfamily | Homologous Superfamily |
| IPR017550 | Formylmethanofuran dehydrogenase subunit C | Domain |
| IPR006657 | Molybdopterin dinucleotide-binding domain | Domain |
| IPR009010 | Aspartate decarboxylase-like domain superfamily | Homologous Superfamily |
| IPR012040 | Formylmethanofuran dehydrogenase, subunit D | Family |
| IPR017900 | 4Fe-4S ferredoxin, iron-sulphur binding, conserved site | Conserved Site |
| IPR017896 | 4Fe-4S ferredoxin-type, iron-sulphur binding domain | Domain |