succinyl-CoA synthase, beta subunit; 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.

succinyl-CoA synthase, alpha subunit; 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.

Pyruvate dehydrogenase, E2 component, dihydrolipoamide acetyltransferase; The pyruvate dehydrogenase complex catalyzes the overall conversion of pyruvate to acetyl-CoA and CO(2).

Pyruvate dehydrogenase, E3 component, lipoamide dehydrogenase; The branched-chain alpha-keto dehydrogenase complex catalyzes the overall conversion of alpha-keto acids to acyl-CoA and CO(2). It contains multiple copies of 3 enzymatic components: branched-chain alpha-keto acid decarboxylase (E1), lipoamide acyltransferase (E2) and lipoamide dehydrogenase (E3) (By similarity).

Pyridine nucleotide-disulfide oxidoreductase, class I; Similar to GB:AL009126; identified by sequence similarity; putative.

Succinate dehydrogenase, cytochrome b556 subunit; Similar to GB:J01619 SP:P10446 GB:X00980 PID:146197 PID:42923; identified by sequence similarity; putative.

Succinate dehydrogenase, hydrophobic membrane anchor protein; Membrane-anchoring subunit of succinate dehydrogenase (SDH).

Succinate dehydrogenase, iron-sulfur protein; Similar to PID:2239250; identified by sequence similarity; putative; Belongs to the succinate dehydrogenase/fumarate reductase iron-sulfur protein family.