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

Succinyl CoA synthetase beta chain; 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.

2-methylcitrate dehydratase.

Succinate dehydrogenase iron-sulfur subunit.

2-methylisocitrate lyase; Catalyzes the thermodynamically favored C-C bond cleavage of (2R,3S)-2-methylisocitrate to yield pyruvate and succinate. Belongs to the isocitrate lyase/PEP mutase superfamily. Methylisocitrate lyase family.

Succinate dehydrogenase flavoprotein subunit; Belongs to the FAD-dependent oxidoreductase 2 family. FRD/SDH subfamily.

Bifunctional enoyl-CoA hydratase/phosphate acetyltransferase.

Acetyl-coenzyme A synthetase; Catalyzes the conversion of acetate into acetyl-CoA (AcCoA), an essential intermediate at the junction of anabolic and catabolic pathways. AcsA undergoes a two-step reaction. In the first half reaction, AcsA combines acetate with ATP to form acetyl-adenylate (AcAMP) intermediate. In the second half reaction, it can then transfer the acetyl group from AcAMP to the sulfhydryl group of CoA, forming the product AcCoA.

2-oxoglutarate dehydrogenase E1.