Fumarate hydratase class I, aerobic; Catalyzes the reversible hydration of fumarate to (S)-malate. Belongs to the class-I fumarase family.

Citrate synthase; Belongs to the citrate synthase family.

Aconitate hydratase 1; Catalyzes the isomerization of citrate to isocitrate via cis- aconitate.

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.

Glycine dehydrogenase (decarboxylating); The glycine cleavage system catalyzes the degradation of glycine. The P protein binds the alpha-amino group of glycine through its pyridoxal phosphate cofactor; CO(2) is released and the remaining methylamine moiety is then transferred to the lipoamide cofactor of the H protein; Belongs to the GcvP family.

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

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.

2-oxoglutarate dehydrogenase E1 component.

Catalase C; Serves to protect cells from the toxic effects of hydrogen peroxide.