| node1 | node2 | node1 accession | node2 accession | node1 annotation | node2 annotation | score |
| Atu4401 | napA | Atu4401 | Atu4408 | Conserved hypothetical protein. | Periplasmic nitrate reductase large subunit; Catalytic subunit of the periplasmic nitrate reductase complex NapAB. Receives electrons from NapB and catalyzes the reduction of nitrate to nitrite. | 0.511 |
| Atu4401 | napB | Atu4401 | Atu4409 | Conserved hypothetical protein. | Periplasmic nitrate reductase small subunit; Electron transfer subunit of the periplasmic nitrate reductase complex NapAB; Belongs to the NapB family. | 0.519 |
| Atu4401 | napC | Atu4401 | Atu4410 | Conserved hypothetical protein. | Periplasmic nitrate reductase, cytochrome c-type protein. | 0.509 |
| Atu4401 | napD | Atu4401 | Atu4407 | Conserved hypothetical protein. | Periplasmic nitrate reductase, NapD protein; Chaperone for NapA, the catalytic subunit of the periplasmic nitrate reductase. It binds directly and specifically to the twin- arginine signal peptide of NapA, preventing premature interaction with the Tat translocase and premature export. | 0.438 |
| Atu4401 | napE | Atu4401 | Atu4405 | Conserved hypothetical protein. | Periplasmic nitrate reductase protein NapE. | 0.438 |
| Atu4401 | napF | Atu4401 | Atu4406 | Conserved hypothetical protein. | Periplasmic nitrate reductase, ferredoxin-like protein; Could be involved in the maturation of NapA, the catalytic subunit of the periplasmic nitrate reductase, before its export into the periplasm; Belongs to the NapF family. | 0.594 |
| fbcB | napE | Atu2238 | Atu4405 | Ubiquinol-cytochrome c reductase cytochrome b subunit; Component of the ubiquinol-cytochrome c reductase complex (complex III or cytochrome b-c1 complex), which is a respiratory chain that generates an electrochemical potential coupled to ATP synthesis. | Periplasmic nitrate reductase protein NapE. | 0.500 |
| napA | Atu4401 | Atu4408 | Atu4401 | Periplasmic nitrate reductase large subunit; Catalytic subunit of the periplasmic nitrate reductase complex NapAB. Receives electrons from NapB and catalyzes the reduction of nitrate to nitrite. | Conserved hypothetical protein. | 0.511 |
| napA | napB | Atu4408 | Atu4409 | Periplasmic nitrate reductase large subunit; Catalytic subunit of the periplasmic nitrate reductase complex NapAB. Receives electrons from NapB and catalyzes the reduction of nitrate to nitrite. | Periplasmic nitrate reductase small subunit; Electron transfer subunit of the periplasmic nitrate reductase complex NapAB; Belongs to the NapB family. | 0.999 |
| napA | napC | Atu4408 | Atu4410 | Periplasmic nitrate reductase large subunit; Catalytic subunit of the periplasmic nitrate reductase complex NapAB. Receives electrons from NapB and catalyzes the reduction of nitrate to nitrite. | Periplasmic nitrate reductase, cytochrome c-type protein. | 0.984 |
| napA | napD | Atu4408 | Atu4407 | Periplasmic nitrate reductase large subunit; Catalytic subunit of the periplasmic nitrate reductase complex NapAB. Receives electrons from NapB and catalyzes the reduction of nitrate to nitrite. | Periplasmic nitrate reductase, NapD protein; Chaperone for NapA, the catalytic subunit of the periplasmic nitrate reductase. It binds directly and specifically to the twin- arginine signal peptide of NapA, preventing premature interaction with the Tat translocase and premature export. | 0.979 |
| napA | napE | Atu4408 | Atu4405 | Periplasmic nitrate reductase large subunit; Catalytic subunit of the periplasmic nitrate reductase complex NapAB. Receives electrons from NapB and catalyzes the reduction of nitrate to nitrite. | Periplasmic nitrate reductase protein NapE. | 0.855 |
| napA | napF | Atu4408 | Atu4406 | Periplasmic nitrate reductase large subunit; Catalytic subunit of the periplasmic nitrate reductase complex NapAB. Receives electrons from NapB and catalyzes the reduction of nitrate to nitrite. | Periplasmic nitrate reductase, ferredoxin-like protein; Could be involved in the maturation of NapA, the catalytic subunit of the periplasmic nitrate reductase, before its export into the periplasm; Belongs to the NapF family. | 0.985 |
| napA | nirB | Atu4408 | Atu3902 | Periplasmic nitrate reductase large subunit; Catalytic subunit of the periplasmic nitrate reductase complex NapAB. Receives electrons from NapB and catalyzes the reduction of nitrate to nitrite. | Nitrite reductase large subunit; Belongs to the nitrite and sulfite reductase 4Fe-4S domain family. | 0.947 |
| napA | nirD | Atu4408 | Atu3901 | Periplasmic nitrate reductase large subunit; Catalytic subunit of the periplasmic nitrate reductase complex NapAB. Receives electrons from NapB and catalyzes the reduction of nitrate to nitrite. | Nitrite reductase small subunit. | 0.925 |
| napB | Atu4401 | Atu4409 | Atu4401 | Periplasmic nitrate reductase small subunit; Electron transfer subunit of the periplasmic nitrate reductase complex NapAB; Belongs to the NapB family. | Conserved hypothetical protein. | 0.519 |
| napB | napA | Atu4409 | Atu4408 | Periplasmic nitrate reductase small subunit; Electron transfer subunit of the periplasmic nitrate reductase complex NapAB; Belongs to the NapB family. | Periplasmic nitrate reductase large subunit; Catalytic subunit of the periplasmic nitrate reductase complex NapAB. Receives electrons from NapB and catalyzes the reduction of nitrate to nitrite. | 0.999 |
| napB | napC | Atu4409 | Atu4410 | Periplasmic nitrate reductase small subunit; Electron transfer subunit of the periplasmic nitrate reductase complex NapAB; Belongs to the NapB family. | Periplasmic nitrate reductase, cytochrome c-type protein. | 0.997 |
| napB | napD | Atu4409 | Atu4407 | Periplasmic nitrate reductase small subunit; Electron transfer subunit of the periplasmic nitrate reductase complex NapAB; Belongs to the NapB family. | Periplasmic nitrate reductase, NapD protein; Chaperone for NapA, the catalytic subunit of the periplasmic nitrate reductase. It binds directly and specifically to the twin- arginine signal peptide of NapA, preventing premature interaction with the Tat translocase and premature export. | 0.986 |
| napB | napE | Atu4409 | Atu4405 | Periplasmic nitrate reductase small subunit; Electron transfer subunit of the periplasmic nitrate reductase complex NapAB; Belongs to the NapB family. | Periplasmic nitrate reductase protein NapE. | 0.868 |