COX18HS is an alias for the gene, COX18 cytochrome c oxidase assembly factor, in humans. Other names include: Mitochondrial inner membrane protein COX18; COX18Hs; Cytochrome c oxidase assembly protein 18. The encoded protein has an amino acid length of 333 and a mass of 37.1 kDa. Other isoforms may exist. COX18HS is a member of the OXA1/ALB3/YidC family. This gene shares homology with other species, including: Mouse, Rat.