| B [auth V2] | 2Fe-2S_thioredx_N | e6q9dV21 | A: alpha bundles | X: NQO2 helical bundle domain (From Topology) | H: NQO2 helical bundle domain (From Topology) | T: NQO2 helical bundle domain | F: 2Fe-2S_thioredx_N | ECOD (1.6) |
| B [auth V2] | 2Fe-2S_thioredx_C | e6q9dV22 | A: a+b three layers | X: Thioredoxin-like | H: Thioredoxin-like (From Topology) | T: Thioredoxin-like | F: 2Fe-2S_thioredx_C | ECOD (1.6) |
| D [auth S2] | Complex1_49kDa_1st | e6q9dS22 | A: alpha complex topology | X: alpha-helical domain in nickel-iron hydrogenase, large subunit (From Topology) | H: alpha-helical domain in nickel-iron hydrogenase, large subunit (From Topology) | T: alpha-helical domain in nickel-iron hydrogenase, large subunit | F: Complex1_49kDa_1st | ECOD (1.6) |
| D [auth S2] | NuoD | e6q9dS21 | A: a+b two layers | X: FAD-linked reductases, C-terminal domain-like | H: Ni-Fe binding domain in nickel-iron hydrogenase large subunit (From Topology) | T: Ni-Fe binding domain in nickel-iron hydrogenase large subunit | F: NuoD | ECOD (1.6) |
| D [auth S2] | Complex1_49kDa_2nd | e6q9dS23 | A: a+b two layers | X: FAD-linked reductases, C-terminal domain-like | H: Ni-Fe binding domain in nickel-iron hydrogenase large subunit (From Topology) | T: Ni-Fe binding domain in nickel-iron hydrogenase large subunit | F: Complex1_49kDa_2nd | ECOD (1.6) |
| E [auth S3] | Complex1_30kDa | e6q9dS31 | A: a+b two layers | X: Nqo5-like | H: Nqo5-like (From Topology) | T: Nqo5-like | F: Complex1_30kDa | ECOD (1.6) |
| F [auth S7] | Oxidored_q6 | e6q9dS71 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: CheY-like | F: Oxidored_q6 | ECOD (1.6) |
| G [auth S8] | Fer4_21_1 | e6q9dS81 | A: a+b two layers | X: 4Fe-4S ferredoxin (From Topology) | H: 4Fe-4S ferredoxin (From Topology) | T: 4Fe-4S ferredoxin | F: Fer4_21_1 | ECOD (1.6) |
| P [auth AL] | NDUFA12 | e6q9dAL1 | A: a+b three layers | X: Mitochondrial complex I, B17.2 subunit (From Topology) | H: Mitochondrial complex I, B17.2 subunit (From Topology) | T: Mitochondrial complex I, B17.2 subunit | F: NDUFA12 | ECOD (1.6) |
| I [auth S6] | zf-CHCC | e6q9dS61 | A: few secondary structure elements | X: Rubredoxin-like | H: Rubredoxin-related | T: Cytochrome c oxidase Subunit F | F: zf-CHCC | ECOD (1.6) |
| C [auth S1] | PRK09129 | e6q9dS11 | A: a+b two layers | X: 4Fe-4S ferredoxin (From Topology) | H: 4Fe-4S ferredoxin (From Topology) | T: 4Fe-4S ferredoxin | F: PRK09129 | ECOD (1.6) |
| C [auth S1] | Fer2_4 | e6q9dS12 | A: a+b two layers | X: beta-Grasp | H: Ubiquitin-related | T: Ubiquitin-like | F: Fer2_4 | ECOD (1.6) |
| C [auth S1] | Molybdop_Fe4S4_1 | e6q9dS15 | A: a+b two layers | X: Formate dehydrogenase/DMSO reductase, domain 1 (From Topology) | H: Formate dehydrogenase/DMSO reductase, domain 1 (From Topology) | T: Formate dehydrogenase/DMSO reductase, domain 1 | F: Molybdop_Fe4S4_1 | ECOD (1.6) |
| C [auth S1] | Molybdopterin_2nd | e6q9dS14 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Formate dehydrogenase/DMSO reductase, domains 2 and 3 (From Topology) | T: Formate dehydrogenase/DMSO reductase, domains 2 and 3 | F: Molybdopterin_2nd | ECOD (1.6) |
| C [auth S1] | Molybdopterin_1st | e6q9dS13 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Formate dehydrogenase/DMSO reductase, domains 2 and 3 (From Topology) | T: Formate dehydrogenase/DMSO reductase, domains 2 and 3 | F: Molybdopterin_1st | ECOD (1.6) |
| C [auth S1] | NADH-G_4Fe-4S_3 | e6q9dS16 | A: extended segments | X: iron-sulfur center-binding helical hairpin (From Topology) | H: iron-sulfur center-binding helical hairpin (From Topology) | T: iron-sulfur center-binding helical hairpin | F: NADH-G_4Fe-4S_3 | ECOD (1.6) |
| Q [auth AA] | PP-binding | e6q9dAA1 | A: alpha bundles | X: ACP-like | H: Acyl-carrier protein (ACP) (From Topology) | T: Acyl-carrier protein (ACP) | F: PP-binding | ECOD (1.6) |
| N [auth A6] | Complex1_LYR | e6q9dA61 | A: alpha bundles | X: LYR protein (From Topology) | H: LYR protein (From Topology) | T: LYR protein | F: Complex1_LYR | ECOD (1.6) |
| M [auth A5] | ETC_C1_NDUFA5 | e6q9dA51 | A: extended segments | X: FATC domain (From Topology) | H: FATC domain (From Topology) | T: FATC domain | F: ETC_C1_NDUFA5 | ECOD (1.6) |
| L [auth A2] | L51_S25_CI-B8 | e6q9dA21 | A: a+b three layers | X: Thioredoxin-like | H: Thioredoxin-like (From Topology) | T: Thioredoxin-like | F: L51_S25_CI-B8 | ECOD (1.6) |
| K [auth A9] | NAD_binding_10 | e6q9dA91 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Rossmann-related | T: NAD(P)-binding Rossmann-fold domains | F: NAD_binding_10 | ECOD (1.6) |
| J [auth S4] | ETC_C1_NDUFA4 | e6q9dS41 | A: a+b two layers | X: Putative oxidoreductase (From Topology) | H: Putative oxidoreductase (From Topology) | T: Putative oxidoreductase | F: ETC_C1_NDUFA4 | ECOD (1.6) |
| A [auth V1] | NADH_4Fe-4S | e6q9dV13 | A: alpha bundles | X: Bromodomain-like | H: Nqo1C-terminal domain-like (From Topology) | T: Nqo1C-terminal domain-like | F: NADH_4Fe-4S | ECOD (1.6) |
| A [auth V1] | SLBB | e6q9dV12 | A: a+b two layers | X: beta-Grasp | H: Ubiquitin-related | T: Nqo1 middle domain-like | F: SLBB | ECOD (1.6) |
| A [auth V1] | Complex1_51K | e6q9dV11 | A: a/b three-layered sandwiches | X: Nqo1 FMN-binding domain-like (From Topology) | H: Nqo1 FMN-binding domain-like (From Topology) | T: Nqo1 FMN-binding domain-like | F: Complex1_51K | ECOD (1.6) |
