| Chain | GOid | namespace | contents |
| A | 0008901 | molecular_function | ferredoxin hydrogenase activity |
| A | 0016151 | molecular_function | nickel cation binding |
| A | 0050454 | molecular_function | coenzyme F420 hydrogenase activity |
| A | 0050660 | molecular_function | flavin adenine dinucleotide binding |
| A | 0051536 | molecular_function | iron-sulfur cluster binding |
| B | 0016151 | molecular_function | nickel cation binding |
| B | 0016491 | molecular_function | oxidoreductase activity |
| B | 0050454 | molecular_function | coenzyme F420 hydrogenase activity |
| B | 0050660 | molecular_function | flavin adenine dinucleotide binding |
| B | 0051536 | molecular_function | iron-sulfur cluster binding |
| B | 0052592 | molecular_function | oxidoreductase activity, acting on CH or CH2 groups, with an iron-sulfur protein as acceptor |
| G | 0016151 | molecular_function | nickel cation binding |
| G | 0016491 | molecular_function | oxidoreductase activity |
| G | 0050454 | molecular_function | coenzyme F420 hydrogenase activity |
| G | 0050660 | molecular_function | flavin adenine dinucleotide binding |
| G | 0051536 | molecular_function | iron-sulfur cluster binding |