| 3AYX | A:; C: | MEMBRANE-BOUND RESPIRATORY [NIFE] HYDROGENASE FROM HYDROGENOVIBRIO MARINUS IN AN H2-REDUCED CONDITION |
| 3AYY | A:; C: | MEMBRANE-BOUND RESPIRATORY [NIFE] HYDROGENASE FROM HYDROGENOVIBRIO MARINUS IN A FERRICYANIDE-OXIDIZED CONDITION |
| 3AYZ | A:; C: | MEMBRANE-BOUND RESPIRATORY [NIFE] HYDROGENASE FROM HYDROGENOVIBRIO MARINUS IN AN AIR-OXIDIZED CONDITION |