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

Succinate dehydrogenase cytochrome subunit.

Cytochrome Caa3 oxidase subunit I; Belongs to the heme-copper respiratory oxidase family.

Cytochrome Caa3 oxidase subunit IIC; Subunits I and II form the functional core of the enzyme complex. Electrons originating in cytochrome c are transferred via heme a and Cu(A) to the binuclear center formed by heme a3 and Cu(B).

Succinate dehydrogenase membrane subunit SdhD.

Hypothetical protein.

NADH-quinone oxidoreductase subunit 4; 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 a menaquinone. 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; Belongs to the complex I 49 kDa subunit family.

2-oxoglutarate dehydrogenase E1 component.

succinyl-CoA synthetase 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.