Succinyl-CoA ligase [ADP-forming] subunit beta; 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.

NADH-quinone oxidoreductase subunit C/D; 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 C-terminal section; belongs to the complex I 49 kDa subunit family.

Ankyrin repeats (3 copies).

Carbamate kinase 2; Belongs to the carbamate kinase family.

2-oxoglutarate dehydrogenase E1 component.

Succinate dehydrogenase iron-sulfur subunit; Belongs to the succinate dehydrogenase/fumarate reductase iron-sulfur protein family.

Fumarate reductase iron-sulfur subunit; Belongs to the succinate dehydrogenase/fumarate reductase iron-sulfur protein family.

ATP synthase gamma chain; Produces ATP from ADP in the presence of a proton gradient across the membrane. The gamma chain is believed to be important in regulating ATPase activity and the flow of protons through the CF(0) complex.