| node1 | node2 | node1 accession | node2 accession | node1 annotation | node2 annotation | score |
| Atu4385 | norB | Atu4385 | Atu4388 | Conserved hypothetical protein. | Nitric oxide reductase, cytochrome b subunit. | 0.643 |
| Atu4385 | norC | Atu4385 | Atu4389 | Conserved hypothetical protein. | Nitric oxide reductase, cytochrome c-containing subunit. | 0.528 |
| Atu4385 | norD | Atu4385 | Atu4386 | Conserved hypothetical protein. | Nitric oxide reductase NorD protein. | 0.821 |
| Atu4385 | norQ | Atu4385 | Atu4387 | Conserved hypothetical protein. | Nitric oxide reductase NorQ protein. | 0.635 |
| cobS-2 | norB | Atu3622 | Atu4388 | Cobalamin biosynthesis protein. | Nitric oxide reductase, cytochrome b subunit. | 0.605 |
| cobS-2 | norC | Atu3622 | Atu4389 | Cobalamin biosynthesis protein. | Nitric oxide reductase, cytochrome c-containing subunit. | 0.636 |
| cobS-2 | norD | Atu3622 | Atu4386 | Cobalamin biosynthesis protein. | Nitric oxide reductase NorD protein. | 0.673 |
| napC | nirK | Atu4410 | Atu4382 | Periplasmic nitrate reductase, cytochrome c-type protein. | Nitrite reductase, copper-containing; Belongs to the multicopper oxidase family. | 0.417 |
| napC | nirV | Atu4410 | Atu4381 | Periplasmic nitrate reductase, cytochrome c-type protein. | Nitrite reductase, NirV precursor. | 0.433 |
| napC | norB | Atu4410 | Atu4388 | Periplasmic nitrate reductase, cytochrome c-type protein. | Nitric oxide reductase, cytochrome b subunit. | 0.504 |
| napC | norC | Atu4410 | Atu4389 | Periplasmic nitrate reductase, cytochrome c-type protein. | Nitric oxide reductase, cytochrome c-containing subunit. | 0.487 |
| napC | norD | Atu4410 | Atu4386 | Periplasmic nitrate reductase, cytochrome c-type protein. | Nitric oxide reductase NorD protein. | 0.644 |
| napC | norQ | Atu4410 | Atu4387 | Periplasmic nitrate reductase, cytochrome c-type protein. | Nitric oxide reductase NorQ protein. | 0.415 |
| nirK | napC | Atu4382 | Atu4410 | Nitrite reductase, copper-containing; Belongs to the multicopper oxidase family. | Periplasmic nitrate reductase, cytochrome c-type protein. | 0.417 |
| nirK | nirV | Atu4382 | Atu4381 | Nitrite reductase, copper-containing; Belongs to the multicopper oxidase family. | Nitrite reductase, NirV precursor. | 0.937 |
| nirK | norB | Atu4382 | Atu4388 | Nitrite reductase, copper-containing; Belongs to the multicopper oxidase family. | Nitric oxide reductase, cytochrome b subunit. | 0.981 |
| nirK | norC | Atu4382 | Atu4389 | Nitrite reductase, copper-containing; Belongs to the multicopper oxidase family. | Nitric oxide reductase, cytochrome c-containing subunit. | 0.969 |
| nirK | norD | Atu4382 | Atu4386 | Nitrite reductase, copper-containing; Belongs to the multicopper oxidase family. | Nitric oxide reductase NorD protein. | 0.680 |
| nirK | norE | Atu4382 | Atu4391 | Nitrite reductase, copper-containing; Belongs to the multicopper oxidase family. | Nitric oxide reductase NorE protein. | 0.512 |
| nirK | norQ | Atu4382 | Atu4387 | Nitrite reductase, copper-containing; Belongs to the multicopper oxidase family. | Nitric oxide reductase NorQ protein. | 0.674 |