| node1 | node2 | node1 accession | node2 accession | node1 annotation | node2 annotation | score |
| frdA | frdB | plu4124 | plu4125 | Fumarate reductase flavoprotein subunit. | Fumarate reductase iron-sulfur protein; Belongs to the succinate dehydrogenase/fumarate reductase iron-sulfur protein family. | 0.997 |
| frdA | frdC | plu4124 | plu4126 | Fumarate reductase flavoprotein subunit. | Fumarate reductase 15 kDa hydrophobic protein; Seems to be involved in the anchoring of the catalytic components of the fumarate reductase complex to the cytoplasmic membrane. | 0.992 |
| frdA | frdD | plu4124 | plu4127 | Fumarate reductase flavoprotein subunit. | Fumarate reductase 13 kDa hydrophobic protein; Seems to be involved in the anchoring of the catalytic components of the fumarate reductase complex to the cytoplasmic membrane. | 0.988 |
| frdA | gabD | plu4124 | plu0984 | Fumarate reductase flavoprotein subunit. | Succinate-semialdehyde dehydrogenase; Belongs to the aldehyde dehydrogenase family. | 0.918 |
| frdA | sdhA | plu4124 | plu1428 | Fumarate reductase flavoprotein subunit. | Succinate dehydrogenase flavoprotein subunit; Belongs to the FAD-dependent oxidoreductase 2 family. FRD/SDH subfamily. | 0.911 |
| frdA | sdhB | plu4124 | plu1429 | Fumarate reductase flavoprotein subunit. | Succinate dehydrogenase iron sulfur protein; Belongs to the succinate dehydrogenase/fumarate reductase iron-sulfur protein family. | 0.997 |
| frdA | sdhC | plu4124 | plu1426 | Fumarate reductase flavoprotein subunit. | Succinate dehydrogenase cytochrome b-556 subunit. | 0.996 |
| frdA | sdhD | plu4124 | plu1427 | Fumarate reductase flavoprotein subunit. | Succinate dehydrogenase hydrophobic membrane anchor subunit; Membrane-anchoring subunit of succinate dehydrogenase (SDH). | 0.982 |
| frdB | frdA | plu4125 | plu4124 | Fumarate reductase iron-sulfur protein; Belongs to the succinate dehydrogenase/fumarate reductase iron-sulfur protein family. | Fumarate reductase flavoprotein subunit. | 0.997 |
| frdB | frdC | plu4125 | plu4126 | Fumarate reductase iron-sulfur protein; Belongs to the succinate dehydrogenase/fumarate reductase iron-sulfur protein family. | Fumarate reductase 15 kDa hydrophobic protein; Seems to be involved in the anchoring of the catalytic components of the fumarate reductase complex to the cytoplasmic membrane. | 0.999 |
| frdB | frdD | plu4125 | plu4127 | Fumarate reductase iron-sulfur protein; Belongs to the succinate dehydrogenase/fumarate reductase iron-sulfur protein family. | Fumarate reductase 13 kDa hydrophobic protein; Seems to be involved in the anchoring of the catalytic components of the fumarate reductase complex to the cytoplasmic membrane. | 0.998 |
| frdB | gabD | plu4125 | plu0984 | Fumarate reductase iron-sulfur protein; Belongs to the succinate dehydrogenase/fumarate reductase iron-sulfur protein family. | Succinate-semialdehyde dehydrogenase; Belongs to the aldehyde dehydrogenase family. | 0.907 |
| frdB | sdhA | plu4125 | plu1428 | Fumarate reductase iron-sulfur protein; Belongs to the succinate dehydrogenase/fumarate reductase iron-sulfur protein family. | Succinate dehydrogenase flavoprotein subunit; Belongs to the FAD-dependent oxidoreductase 2 family. FRD/SDH subfamily. | 0.997 |
| frdB | sdhB | plu4125 | plu1429 | Fumarate reductase iron-sulfur protein; Belongs to the succinate dehydrogenase/fumarate reductase iron-sulfur protein family. | Succinate dehydrogenase iron sulfur protein; Belongs to the succinate dehydrogenase/fumarate reductase iron-sulfur protein family. | 0.914 |
| frdB | sdhC | plu4125 | plu1426 | Fumarate reductase iron-sulfur protein; Belongs to the succinate dehydrogenase/fumarate reductase iron-sulfur protein family. | Succinate dehydrogenase cytochrome b-556 subunit. | 0.996 |
| frdB | sdhD | plu4125 | plu1427 | Fumarate reductase iron-sulfur protein; Belongs to the succinate dehydrogenase/fumarate reductase iron-sulfur protein family. | Succinate dehydrogenase hydrophobic membrane anchor subunit; Membrane-anchoring subunit of succinate dehydrogenase (SDH). | 0.988 |
| frdC | frdA | plu4126 | plu4124 | Fumarate reductase 15 kDa hydrophobic protein; Seems to be involved in the anchoring of the catalytic components of the fumarate reductase complex to the cytoplasmic membrane. | Fumarate reductase flavoprotein subunit. | 0.992 |
| frdC | frdB | plu4126 | plu4125 | Fumarate reductase 15 kDa hydrophobic protein; Seems to be involved in the anchoring of the catalytic components of the fumarate reductase complex to the cytoplasmic membrane. | Fumarate reductase iron-sulfur protein; Belongs to the succinate dehydrogenase/fumarate reductase iron-sulfur protein family. | 0.999 |
| frdC | frdD | plu4126 | plu4127 | Fumarate reductase 15 kDa hydrophobic protein; Seems to be involved in the anchoring of the catalytic components of the fumarate reductase complex to the cytoplasmic membrane. | Fumarate reductase 13 kDa hydrophobic protein; Seems to be involved in the anchoring of the catalytic components of the fumarate reductase complex to the cytoplasmic membrane. | 0.999 |
| frdC | gabD | plu4126 | plu0984 | Fumarate reductase 15 kDa hydrophobic protein; Seems to be involved in the anchoring of the catalytic components of the fumarate reductase complex to the cytoplasmic membrane. | Succinate-semialdehyde dehydrogenase; Belongs to the aldehyde dehydrogenase family. | 0.900 |