| node1 | node2 | node1 accession | node2 accession | node1 annotation | node2 annotation | score |
| hdrA | hdrB | GSU0090 | GSU0091 | Heterodisulfide oxidoreductase, FAD-binding and iron-sulfur cluster-binding subunit A. | Heterodisulfide oxidoreductase, CCG domain pair-containing subunit B. | 0.999 |
| hdrA | hdrC | GSU0090 | GSU0092 | Heterodisulfide oxidoreductase, FAD-binding and iron-sulfur cluster-binding subunit A. | Heterodisulfide oxidoreductase, iron-sulfur cluster-binding subunit C. | 0.999 |
| hdrA | hdrD | GSU0090 | GSU0088 | Heterodisulfide oxidoreductase, FAD-binding and iron-sulfur cluster-binding subunit A. | Heterodisulfide oxidoreductase, iron-sulfur cluster-binding subunit D. | 0.997 |
| hdrA | hdrE | GSU0090 | GSU0087 | Heterodisulfide oxidoreductase, FAD-binding and iron-sulfur cluster-binding subunit A. | Heterodisulfide oxidoreductase, iron-sulfur cluster-binding subunit E. | 0.958 |
| hdrA | hdrF | GSU0090 | GSU0085 | Heterodisulfide oxidoreductase, FAD-binding and iron-sulfur cluster-binding subunit A. | Heterodisulfide oxidoreductase, NAD(P)H oxidoreductase subunit F. | 0.962 |
| hdrA | hdrG | GSU0090 | GSU0089 | Heterodisulfide oxidoreductase, FAD-binding and iron-sulfur cluster-binding subunit A. | Heterodisulfide oxidoreductase, iron-sulfur cluster-binding subunit G. | 0.999 |
| hdrA | hyaL | GSU0090 | GSU0122 | Heterodisulfide oxidoreductase, FAD-binding and iron-sulfur cluster-binding subunit A. | Periplasmically oriented, membrane-bound [NiFe]-hydrogenase large subunit; Belongs to the [NiFe]/[NiFeSe] hydrogenase large subunit family. | 0.849 |
| hdrA | hybL | GSU0090 | GSU0785 | Heterodisulfide oxidoreductase, FAD-binding and iron-sulfur cluster-binding subunit A. | Periplasmically oriented, membrane-bound [NiFe]-hydrogenase large subunit; Belongs to the [NiFe]/[NiFeSe] hydrogenase large subunit family. | 0.849 |
| hdrA | mvhL | GSU0090 | GSU2419 | Heterodisulfide oxidoreductase, FAD-binding and iron-sulfur cluster-binding subunit A. | Methyl viologen-reducing hydrogenase, large subunit. | 0.949 |
| hdrA | mvhS | GSU0090 | GSU2418 | Heterodisulfide oxidoreductase, FAD-binding and iron-sulfur cluster-binding subunit A. | Methyl viologen-reducing hydrogenase, small subunit. | 0.993 |
| hdrB | hdrA | GSU0091 | GSU0090 | Heterodisulfide oxidoreductase, CCG domain pair-containing subunit B. | Heterodisulfide oxidoreductase, FAD-binding and iron-sulfur cluster-binding subunit A. | 0.999 |
| hdrB | hdrC | GSU0091 | GSU0092 | Heterodisulfide oxidoreductase, CCG domain pair-containing subunit B. | Heterodisulfide oxidoreductase, iron-sulfur cluster-binding subunit C. | 0.999 |
| hdrB | hdrD | GSU0091 | GSU0088 | Heterodisulfide oxidoreductase, CCG domain pair-containing subunit B. | Heterodisulfide oxidoreductase, iron-sulfur cluster-binding subunit D. | 0.996 |
| hdrB | hdrE | GSU0091 | GSU0087 | Heterodisulfide oxidoreductase, CCG domain pair-containing subunit B. | Heterodisulfide oxidoreductase, iron-sulfur cluster-binding subunit E. | 0.944 |
| hdrB | hdrF | GSU0091 | GSU0085 | Heterodisulfide oxidoreductase, CCG domain pair-containing subunit B. | Heterodisulfide oxidoreductase, NAD(P)H oxidoreductase subunit F. | 0.954 |
| hdrB | hdrG | GSU0091 | GSU0089 | Heterodisulfide oxidoreductase, CCG domain pair-containing subunit B. | Heterodisulfide oxidoreductase, iron-sulfur cluster-binding subunit G. | 0.999 |
| hdrB | hyaL | GSU0091 | GSU0122 | Heterodisulfide oxidoreductase, CCG domain pair-containing subunit B. | Periplasmically oriented, membrane-bound [NiFe]-hydrogenase large subunit; Belongs to the [NiFe]/[NiFeSe] hydrogenase large subunit family. | 0.745 |
| hdrB | hybL | GSU0091 | GSU0785 | Heterodisulfide oxidoreductase, CCG domain pair-containing subunit B. | Periplasmically oriented, membrane-bound [NiFe]-hydrogenase large subunit; Belongs to the [NiFe]/[NiFeSe] hydrogenase large subunit family. | 0.745 |
| hdrB | mvhL | GSU0091 | GSU2419 | Heterodisulfide oxidoreductase, CCG domain pair-containing subunit B. | Methyl viologen-reducing hydrogenase, large subunit. | 0.920 |
| hdrB | mvhS | GSU0091 | GSU2418 | Heterodisulfide oxidoreductase, CCG domain pair-containing subunit B. | Methyl viologen-reducing hydrogenase, small subunit. | 0.982 |