| Q72AS3 | DB09140 | 6z8j | OXY | B | 508 | e6z8jB1 | 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 |
| Q72AS3 | DB09140 | 6z8j | OXY | D | 506 | e6z8jD2 | 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 |
| Q72AS3 | DB09140 | 6z8m | OXY | B | 509 | e6z8mB4 | 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 |
| Q72AS3 | DB09140 | 6z9o | OXY | B | 509 | e6z9oB4 | 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 |
| Q72AS3 | DB09140 | 6za1 | OXY | B | 508 | e6za1B4 | 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 |