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SCO2 cytochrome c oxidase assembly (also known as SCO2 homolog, mitochondrial and SCO cytochrome oxidase deficient homolog 2) is a protein that in humans is encoded by the SCO2 gene.cite-ref-pmid10218584-5-0[5]cite-ref-pmid16091356-6-0[6]cite-ref-entrez-7-0[7] The encoded protein is one of the cytochrome c oxidase (COX)(Complex IV) assembly factors. Human COX is a multimeric protein complex that requires several assembly factors. Cytochrome c oxidase (COX) catalyzes the transfer of electrons from cytochrome c to molecular oxygen, which helps to maintain the proton gradient across the inner mitochondrial membrane that is necessary for aerobic ATP production. The encoded protein is a metallochaperone that is involved in the biogenesis of cytochrome c oxidase subunit II. Mutations in this gene are associated with fatal infantile encephalocardiomyopathy and myopia 6.cite-ref-entrez-7-1[7]

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