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sucC2 | SucC2: succinyl-CoA ligase, beta subunit. (377 aa) | ||||
sucC | SucC: succinyl-CoA ligase [ADP-forming], 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. (386 aa) |