| Phylum | Cyanobacteria |
| Order | Nostocales |
| Organism | Nodularia spumigena |
| Hydrogenase | [NiFe] Group 2a |
| Activity (Predicted) | Aerobic Uptake |
| Oxygen Tolerance (Predicted) | Tolerant |
| Subunits (Predicted) | 5 |
| Metal Centres (Predicted) | [NiFe]-centre, 2 x [4Fe4S] clusters, 1 x [3Fe4S] cluster |
| Accessory Subunits (Predicted) | [FeS] protein, hypothetical proteins |
MVPGGVMCAPTLTDITRAWAILEYFRTNWLEPVWLGCSLERYEQIQTYDDFMDWLDEDRNHRESDLGFYWRMGLDIGLDRYGAGVGKYVTWGYLAHEDKYQKPTMEGRNAAMIMKGGVYDSFSDTHSLMDQSFLRENTTHSWYDEGTADIHPSDRTTKPTANNSKDFENAYSWSSAVLHKDFGRLEAGPLARQLVAGGNHGESWQHHDGFILDAFKSMGGASVHLRQLARVHELVKLYRQAEHCLREFKLNDPWYIKPTERDGKGWGATEAARGALSHWVEVEGGKIKNYQVVAPGTWNIGPRDGEGKRGPIEEALIGTPIYDSSDPVEVGHVARAFDSCLVCTVHAHDAKTGAELARFRTA