| Label | Id | |
|---|---|---|
| nickel hydrogenase activity | http://purl.obolibrary.org/obo/GO_0008901 | |
| hydrogenase II | http://purl.obolibrary.org/obo/GO_0008901 | |
| nickel-iron hydrogenase activity | http://purl.obolibrary.org/obo/GO_0008901 | |
| [Fe] hydrogenase gamma | http://purl.obolibrary.org/obo/GO_0008901 | |
| H2 producing hydrogenase | http://purl.obolibrary.org/obo/GO_0008901 | |
| nickel-iron-selenium hydrogenase activity | http://purl.obolibrary.org/obo/GO_0008901 | |
| bidirectional hydrogenase activity | http://purl.obolibrary.org/obo/GO_0008901 | |
| Ni-Fe-Se hydrogenase activity | http://purl.obolibrary.org/obo/GO_0008901 |