| P21853 | n/a | 1h2a | SF4 | S | 1002 | e1h2aS1 | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | NiFe_hyd_SSU_C |
| P21853 | n/a | 1h2r | SF4 | S | 1002 | e1h2rS1 | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | NiFe_hyd_SSU_C |
| P21853 | n/a | 1ubh | SF4 | S | 1002 | e1ubhS1 | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | NiFe_hyd_SSU_C |
| P21853 | n/a | 1ubj | SF4 | S | 1002 | e1ubjS1 | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | NiFe_hyd_SSU_C |
| P21853 | n/a | 1ubk | SF4 | S | 1002 | e1ubkS1 | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | NiFe_hyd_SSU_C |
| P21853 | n/a | 1ubl | SF4 | S | 1002 | e1ublS1 | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | NiFe_hyd_SSU_C |
| P21853 | n/a | 1ubm | SF4 | S | 1002 | e1ubmS1 | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | NiFe_hyd_SSU_C |
| P21853 | n/a | 1ubo | SF4 | S | 1002 | e1uboS1 | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | NiFe_hyd_SSU_C |
| P21853 | n/a | 1ubr | SF4 | S | 1002 | e1ubrS1 | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | NiFe_hyd_SSU_C |
| P21853 | n/a | 1ubt | SF4 | S | 1002 | e1ubtS1 | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | NiFe_hyd_SSU_C |
| P21853 | n/a | 1ubu | SF4 | S | 1002 | e1ubuS1 | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | NiFe_hyd_SSU_C |
| P21853 | n/a | 1wuh | SF4 | S | 1002 | e1wuhS1 | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | NiFe_hyd_SSU_C |
| P21853 | n/a | 1wui | SF4 | S | 1002 | e1wuiS1 | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | NiFe_hyd_SSU_C |
| P21853 | n/a | 1wuj | SF4 | S | 1002 | e1wujS1 | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | NiFe_hyd_SSU_C |
| P21853 | n/a | 1wuk | SF4 | S | 1002 | e1wukS1 | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | NiFe_hyd_SSU_C |
| P21853 | n/a | 1wul | SF4 | S | 1002 | e1wulS1 | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | NiFe_hyd_SSU_C |
| P21853 | n/a | 4u9h | SF4 | S | 1002 | e4u9hS1 | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | NiFe_hyd_SSU_C |
| P21853 | n/a | 4u9i | SF4 | S | 2002 | e4u9iS1 | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | NiFe_hyd_SSU_C |
| P21853 | n/a | 5xle | SF4 | S | 1002 | e5xleS2 | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | NiFe_hyd_SSU_C |
| P21853 | n/a | 5xlf | SF4 | S | 1002 | e5xlfS1 | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | NiFe_hyd_SSU_C |
| P21853 | n/a | 5xlg | SF4 | S | 1002 | e5xlgS1 | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | NiFe_hyd_SSU_C |
| P21853 | n/a | 5xlh | SF4 | S | 1002 | e5xlhS1 | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | NiFe_hyd_SSU_C |
| P21853 | n/a | 5y4n | SF4 | S | 1002 | e5y4nS2 | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | NiFe_hyd_SSU_C |
| P21853 | n/a | 8w6x | SF4 | S | 1002 | e8w6xS1 | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit | NiFe_hyd_SSU_C |