Anti-COX19 antibodies are used in the immunodetection of the protein cytochrome c oxidase assembly factor COX19. In humans, the canonical protein has a reported length of 90 amino acid residues and a mass of 10.4 kDa. Its subcellular localization is in the mitochondria and cytoplasm. It is ubiquitously expressed across many tissue types. A member of the COX19 protein family, COX19 is known to be required for the transduction of an SCO1-dependent redox signal from the mitochondrion to ATP7A to regulate cellular copper homeostasis. Synonyms for this target antigen include COX19 cytochrome c oxidase assembly homolog, COX19, cytochrome c oxidase assembly factor, cytochrome c oxidase assembly homolog 19, hCOX19, and cytochrome c oxidase assembly protein COX19. COX19 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. ELISA and Immunohistochemistry are common applications for COX19 antibodies.