Anti-PET100 antibodies are used in the immunodetection of the protein PET100 cytochrome c oxidase chaperone. In humans, the canonical protein has a reported length of 73 amino acid residues and a mass of 9.1 kDa. Its subcellular localization is in the mitochondria. A member of the PET100 protein family, PET100 is known to play an important role in mitochondrial complex IV maturation and assembly. The PET100 gene has been associated with the disease, Mitochondrial complex IV deficiency. Synonyms for this target antigen include protein PET100 homolog, mitochondrial and PET100 homolog. PET100 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish and chimpanzee species. These PET100 antibodies are widely used in ELISA experiments, among other applications.