| F | ETF | e6fahF1 | A: a/b three-layered sandwiches | X: HUP domain-like | H: HUP domains (From Topology) | T: HUP domains | F: ETF | ECOD (1.6) |
| B | ETF | e6fahB1 | A: a/b three-layered sandwiches | X: HUP domain-like | H: HUP domains (From Topology) | T: HUP domains | F: ETF | ECOD (1.6) |
| D | Acyl-CoA_dh_M | e6fahD2 | A: beta complex topology | X: Acyl-CoA dehydrogenase middle domain-like (From Topology) | H: Acyl-CoA dehydrogenase middle domain-like (From Topology) | T: Acyl-CoA dehydrogenase middle domain-like | F: Acyl-CoA_dh_M | ECOD (1.6) |
| D | Acyl-CoA_dh_N | e6fahD3 | A: alpha arrays | X: Acyl-CoA dehydrogenase N-terminal domain-like (From Topology) | H: Acyl-CoA dehydrogenase N-terminal domain-like (From Topology) | T: Acyl-CoA dehydrogenase N-terminal domain-like | F: Acyl-CoA_dh_N | ECOD (1.6) |
| D | Acyl-CoA_dh_1 | e6fahD1 | A: alpha bundles | X: Bromodomain-like | H: Acyl-CoA dehydrogenase C-terminal domain-like (From Topology) | T: Acyl-CoA dehydrogenase C-terminal domain-like | F: Acyl-CoA_dh_1 | ECOD (1.6) |
| C | Acyl-CoA_dh_M | e6fahC3 | A: beta complex topology | X: Acyl-CoA dehydrogenase middle domain-like (From Topology) | H: Acyl-CoA dehydrogenase middle domain-like (From Topology) | T: Acyl-CoA dehydrogenase middle domain-like | F: Acyl-CoA_dh_M | ECOD (1.6) |
| C | Acyl-CoA_dh_N | e6fahC2 | A: alpha arrays | X: Acyl-CoA dehydrogenase N-terminal domain-like (From Topology) | H: Acyl-CoA dehydrogenase N-terminal domain-like (From Topology) | T: Acyl-CoA dehydrogenase N-terminal domain-like | F: Acyl-CoA_dh_N | ECOD (1.6) |
| C | Acyl-CoA_dh_1 | e6fahC1 | A: alpha bundles | X: Bromodomain-like | H: Acyl-CoA dehydrogenase C-terminal domain-like (From Topology) | T: Acyl-CoA dehydrogenase C-terminal domain-like | F: Acyl-CoA_dh_1 | ECOD (1.6) |
| A | Fer4_21_1 | e6fahA2 | 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) |
| A | ETF_alpha | e6fahA3 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Rossmann-related | T: DHS-like NAD/FAD-binding domain | F: ETF_alpha | ECOD (1.6) |
| A | ETF | e6fahA1 | A: a/b three-layered sandwiches | X: HUP domain-like | H: HUP domains (From Topology) | T: HUP domains | F: ETF | ECOD (1.6) |
| E | Fer4_21_1 | e6fahE3 | 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) |
| E | ETF_alpha | e6fahE2 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Rossmann-related | T: DHS-like NAD/FAD-binding domain | F: ETF_alpha | ECOD (1.6) |
| E | ETF | e6fahE1 | A: a/b three-layered sandwiches | X: HUP domain-like | H: HUP domains (From Topology) | T: HUP domains | F: ETF | ECOD (1.6) |