COX7A, or Cytochrome c oxidase subunit VIIa polypeptide 1 (muscle), is a human gene encoded by COX7A1. It may also be known as: Cytochrome c oxidase subunit 7A1, mitochondrial; Cytochrome c oxidase subunit VIIa-heart; Cytochrome c oxidase subunit VIIa-H; Cytochrome c oxidase subunit VIIa-muscle; Cytochrome c oxidase subunit VIIa-MHM. The encoded protein has an amino acid length of 79 and a mass of 9.1 kDa. COX7A is a member of the Cytochrome c oxidase VIIa family. Homologs of this gene exist in other organisms, including: Mouse, Rat, Zebrafish, Frog.