Anti-APOOL antibodies are used in the immunodetection of the protein apolipoprotein O like. In humans, the canonical protein has a reported length of 268 amino acid residues and a mass of 29.2 kDa. Its subcellular localization is in the mitochondria. It is notably widely expressed in many tissue types. A member of the Apolipoprotein O/MICOS complex subunit Mic27 protein family, APOOL is a known component of the MICOS complex, a large protein complex of the mitochondrial inner membrane that plays crucial roles in the maintenance of crista junctions, inner membrane architecture, and formation of contact sites to the outer membrane. Synonyms for this target antigen include AAIR8193, family with sequence similarity 121A, mitochondrial contact site and cristae organizing system subunit 27, and MICOS complex subunit MIC27. APOOL gene orthologs have been reported in the mouse, rat, bovine, frog, chimpanzee and chicken species. A number of APOOL antibodies have been mentioned in research publications and have associated citations. Western Blot is a widely used application for these antibodies. ELISA and Immunohistochemistry are also common applications.