Hypothetical protein; KEGG: ssn:SSO_0674 0. sdhA; succinate dehydrogenase, flavoprotein subunit K00239; COG: COG1053 Succinate dehydrogenase/fumarate reductase, flavoprotein subunit; Belongs to the FAD-dependent oxidoreductase 2 family. FRD/SDH subfamily.

Hypothetical protein; Membrane-anchoring subunit of succinate dehydrogenase (SDH).

Hypothetical protein; KEGG: sec:SC4222 0. frdA; fumarate reductase, anaerobic, flavoprotein subunit K00244; COG: COG1053 Succinate dehydrogenase/fumarate reductase, flavoprotein subunit; Psort location: Periplasmic, score:9.44.

Hypothetical protein; KEGG: stm:STM4342 2.4e-130 frdB; fumarate reductase, anaerobic, Fe-S protein subunit K00245; COG: COG0479 Succinate dehydrogenase/fumarate reductase, Fe-S protein subunit; Psort location: Cytoplasmic, score:8.96.

Hypothetical protein; 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.

Hypothetical protein; 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.

Hypothetical protein; KEGG: ecp:ECP_1403 0. probable pyruvate-flavodoxin oxidoreductase K03737; COG: COG1013 Pyruvate:ferredoxin oxidoreductase and related 2-oxoacid:ferredoxin oxidoreductases, beta subunit.

Hypothetical protein; 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.

Hypothetical protein; 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.