| N | ECH_1 | e4hnkN2 | A: a/b three-layered sandwiches | X: Fusion glycoprotein F2 | H: HTH | T: winged helix domain | F: ECH_1 | ECOD (v294.1) |
| M | ECH_1 | e4hnkM2 | A: a/b three-layered sandwiches | X: Fusion glycoprotein F2 | H: HTH | T: winged helix domain | F: ECH_1 | ECOD (v294.1) |
| L | ECH_1 | e4hnkL2 | A: a/b three-layered sandwiches | X: Fusion glycoprotein F2 | H: HTH | T: winged helix domain | F: ECH_1 | ECOD (v294.1) |
| K | ECH_1 | e4hnkK2 | A: a/b three-layered sandwiches | X: Fusion glycoprotein F2 | H: HTH | T: winged helix domain | F: ECH_1 | ECOD (v294.1) |
| J | Formyl_trans_N | e4hnkJ1 | A: a/b three-layered sandwiches | X: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | H: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | T: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | F: Formyl_trans_N | ECOD (v294.1) |
| I | Formyl_trans_N | e4hnkI1 | A: a/b three-layered sandwiches | X: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | H: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | T: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | F: Formyl_trans_N | ECOD (v294.1) |
| H | ECH_1 | e4hnkH2 | A: a/b three-layered sandwiches | X: Fusion glycoprotein F2 | H: HTH | T: winged helix domain | F: ECH_1 | ECOD (v294.1) |
| G | ECH_1 | e4hnkG2 | A: a/b three-layered sandwiches | X: Fusion glycoprotein F2 | H: HTH | T: winged helix domain | F: ECH_1 | ECOD (v294.1) |
| F | Formyl_trans_N | e4hnkF1 | A: a/b three-layered sandwiches | X: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | H: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | T: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | F: Formyl_trans_N | ECOD (v294.1) |
| E | ECH_1 | e4hnkE2 | A: a/b three-layered sandwiches | X: Fusion glycoprotein F2 | H: HTH | T: winged helix domain | F: ECH_1 | ECOD (v294.1) |
| D | ECH_1 | e4hnkD2 | A: a/b three-layered sandwiches | X: Fusion glycoprotein F2 | H: HTH | T: winged helix domain | F: ECH_1 | ECOD (v294.1) |
| C | Formyl_trans_N | e4hnkC1 | A: a/b three-layered sandwiches | X: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | H: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | T: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | F: Formyl_trans_N | ECOD (v294.1) |
| B | ECH_1 | e4hnkB2 | A: a/b three-layered sandwiches | X: Fusion glycoprotein F2 | H: HTH | T: winged helix domain | F: ECH_1 | ECOD (v294.1) |
| A | ECH_1 | e4hnkA2 | A: a/b three-layered sandwiches | X: Fusion glycoprotein F2 | H: HTH | T: winged helix domain | F: ECH_1 | ECOD (v294.1) |