| P12944 | n/a | 1yq9 | PER | H | 539 | e1yq9H2 | alpha-helical domain in nickel-iron hydrogenase, large subunit | alpha-helical domain in nickel-iron hydrogenase, large subunit | alpha-helical domain in nickel-iron hydrogenase, large subunit | NiFeSe_Hases |
| P12944 | n/a | 1yq9 | PER | H | 539 | e1yq9H3 | FAD-linked reductases, C-terminal domain-like | Ni-Fe binding domain in nickel-iron hydrogenase large subunit | Ni-Fe binding domain in nickel-iron hydrogenase large subunit | NiFeSe_Hases |
| P12944 | n/a | 1yq9 | PER | H | 539 | e1yq9H4 | FAD-linked reductases, C-terminal domain-like | Ni-Fe binding domain in nickel-iron hydrogenase large subunit | Ni-Fe binding domain in nickel-iron hydrogenase large subunit | NiFeSe_Hases |
| P12944 | n/a | 1yq9 | PER | I | 539 | e1yq9I3 | FAD-linked reductases, C-terminal domain-like | Ni-Fe binding domain in nickel-iron hydrogenase large subunit | Ni-Fe binding domain in nickel-iron hydrogenase large subunit | NiFeSe_Hases |
| P12944 | n/a | 1yq9 | PER | I | 539 | e1yq9I4 | FAD-linked reductases, C-terminal domain-like | Ni-Fe binding domain in nickel-iron hydrogenase large subunit | Ni-Fe binding domain in nickel-iron hydrogenase large subunit | NiFeSe_Hases |