| node1 | node2 | node1 accession | node2 accession | node1 annotation | node2 annotation | score |
| frdB | frdC | SO_0399 | SO_0396 | Quinol:fumarate reductase FeS subunit FrdB. | Quinol:fumarate reductase menaquinol-oxidizing subunit FrdC. | 0.999 |
| frdB | frdC-2 | SO_0399 | SO_0397 | Quinol:fumarate reductase FeS subunit FrdB. | Quinol:fumarate reductase menaquinol-oxidizing subunit FrdC. | 0.999 |
| frdB | fumB | SO_0399 | SO_2222 | Quinol:fumarate reductase FeS subunit FrdB. | Anaerobic fumarate hydratase FumB; Catalyzes the reversible hydration of fumarate to (S)-malate. Belongs to the class-I fumarase family. | 0.987 |
| frdB | nuoCD | SO_0399 | SO_1019 | Quinol:fumarate reductase FeS subunit FrdB. | NADH-ubiquinone oxidoreductase subunit CD NuoCD; NDH-1 shuttles electrons from NADH, via FMN and iron-sulfur (Fe-S) centers, to quinones in the respiratory chain. The immediate electron acceptor for the enzyme in this species is believed to be ubiquinone. Couples the redox reaction to proton translocation (for every two electrons transferred, four hydrogen ions are translocated across the cytoplasmic membrane), and thus conserves the redox energy in a proton gradient; In the N-terminal section; belongs to the complex I 30 kDa subunit family. | 0.979 |
| frdB | sdhA | SO_0399 | SO_1928 | Quinol:fumarate reductase FeS subunit FrdB. | Succinate dehydrogenase flavoprotein subunit SdhA; Belongs to the FAD-dependent oxidoreductase 2 family. FRD/SDH subfamily. | 0.998 |
| frdB | sdhB | SO_0399 | SO_1929 | Quinol:fumarate reductase FeS subunit FrdB. | Succinate dehydrogenase iron-sulfur protein SdhB; Belongs to the succinate dehydrogenase/fumarate reductase iron-sulfur protein family. | 0.927 |
| frdB | sdhC | SO_0399 | SO_1927 | Quinol:fumarate reductase FeS subunit FrdB. | Succinate dehydrogenase cytochrome b556 subunit SdhC. | 0.993 |
| frdB | sdhD | SO_0399 | SO_4778 | Quinol:fumarate reductase FeS subunit FrdB. | Succinate dehydrogenase membrane anchor subunit SdhD; Membrane-anchoring subunit of succinate dehydrogenase (SDH). | 0.997 |
| frdB | sucC | SO_0399 | SO_1932 | Quinol:fumarate reductase FeS subunit FrdB. | succinyl-CoA synthase beta subunit SucC; Succinyl-CoA synthetase functions in the citric acid cycle (TCA), coupling the hydrolysis of succinyl-CoA to the synthesis of either ATP or GTP and thus represents the only step of substrate-level phosphorylation in the TCA. The beta subunit provides nucleotide specificity of the enzyme and binds the substrate succinate, while the binding sites for coenzyme A and phosphate are found in the alpha subunit. | 0.959 |
| frdB | sucD | SO_0399 | SO_1933 | Quinol:fumarate reductase FeS subunit FrdB. | succinyl-CoA synthase alpha subunit SucD; Succinyl-CoA synthetase functions in the citric acid cycle (TCA), coupling the hydrolysis of succinyl-CoA to the synthesis of either ATP or GTP and thus represents the only step of substrate-level phosphorylation in the TCA. The alpha subunit of the enzyme binds the substrates coenzyme A and phosphate, while succinate binding and nucleotide specificity is provided by the beta subunit. | 0.972 |
| frdC | frdB | SO_0396 | SO_0399 | Quinol:fumarate reductase menaquinol-oxidizing subunit FrdC. | Quinol:fumarate reductase FeS subunit FrdB. | 0.999 |
| frdC | frdC-2 | SO_0396 | SO_0397 | Quinol:fumarate reductase menaquinol-oxidizing subunit FrdC. | Quinol:fumarate reductase menaquinol-oxidizing subunit FrdC. | 0.948 |
| frdC | fumB | SO_0396 | SO_2222 | Quinol:fumarate reductase menaquinol-oxidizing subunit FrdC. | Anaerobic fumarate hydratase FumB; Catalyzes the reversible hydration of fumarate to (S)-malate. Belongs to the class-I fumarase family. | 0.970 |
| frdC | nuoCD | SO_0396 | SO_1019 | Quinol:fumarate reductase menaquinol-oxidizing subunit FrdC. | NADH-ubiquinone oxidoreductase subunit CD NuoCD; NDH-1 shuttles electrons from NADH, via FMN and iron-sulfur (Fe-S) centers, to quinones in the respiratory chain. The immediate electron acceptor for the enzyme in this species is believed to be ubiquinone. Couples the redox reaction to proton translocation (for every two electrons transferred, four hydrogen ions are translocated across the cytoplasmic membrane), and thus conserves the redox energy in a proton gradient; In the N-terminal section; belongs to the complex I 30 kDa subunit family. | 0.967 |
| frdC | sdhA | SO_0396 | SO_1928 | Quinol:fumarate reductase menaquinol-oxidizing subunit FrdC. | Succinate dehydrogenase flavoprotein subunit SdhA; Belongs to the FAD-dependent oxidoreductase 2 family. FRD/SDH subfamily. | 0.985 |
| frdC | sdhB | SO_0396 | SO_1929 | Quinol:fumarate reductase menaquinol-oxidizing subunit FrdC. | Succinate dehydrogenase iron-sulfur protein SdhB; Belongs to the succinate dehydrogenase/fumarate reductase iron-sulfur protein family. | 0.994 |
| frdC | sdhC | SO_0396 | SO_1927 | Quinol:fumarate reductase menaquinol-oxidizing subunit FrdC. | Succinate dehydrogenase cytochrome b556 subunit SdhC. | 0.900 |
| frdC | sdhD | SO_0396 | SO_4778 | Quinol:fumarate reductase menaquinol-oxidizing subunit FrdC. | Succinate dehydrogenase membrane anchor subunit SdhD; Membrane-anchoring subunit of succinate dehydrogenase (SDH). | 0.997 |
| frdC | sucC | SO_0396 | SO_1932 | Quinol:fumarate reductase menaquinol-oxidizing subunit FrdC. | succinyl-CoA synthase beta subunit SucC; Succinyl-CoA synthetase functions in the citric acid cycle (TCA), coupling the hydrolysis of succinyl-CoA to the synthesis of either ATP or GTP and thus represents the only step of substrate-level phosphorylation in the TCA. The beta subunit provides nucleotide specificity of the enzyme and binds the substrate succinate, while the binding sites for coenzyme A and phosphate are found in the alpha subunit. | 0.942 |
| frdC | sucD | SO_0396 | SO_1933 | Quinol:fumarate reductase menaquinol-oxidizing subunit FrdC. | succinyl-CoA synthase alpha subunit SucD; Succinyl-CoA synthetase functions in the citric acid cycle (TCA), coupling the hydrolysis of succinyl-CoA to the synthesis of either ATP or GTP and thus represents the only step of substrate-level phosphorylation in the TCA. The alpha subunit of the enzyme binds the substrates coenzyme A and phosphate, while succinate binding and nucleotide specificity is provided by the beta subunit. | 0.928 |