2 Fe(III)-[cytochrome c] + succinate => fumarate + 2 Fe(II)-[cytochrome c] + 2 H(+)
2 fe(iii)-[cytochrome c] + succinate => fumarate + 2 fe(ii)-[cytochrome c] + 2 h(+)
2 Fe(III)-[cytochrome c] + succinate => fumarate + 2 Fe(II)-[cytochrome c] + 2 H(+)
2 fe(iii)-[cytochrome c] + succinate => fumarate + 2 fe(ii)-[cytochrome c] + 2 h(+)