Anti-mitochondrial contact site and cristae organizing system subunit 13 antibodies are used for the immunodetection of the protein encoded by the MICOS13 gene. In humans, the canonical protein has a reported length of 118 amino acid residues and a mass of 13.1 kDa. Its subcellular localization is in the mitochondria. A member of the MICOS complex subunit Mic13 protein family, it 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. The gene encoding this protein is implicated in Combined oxidative phosphorylation deficiency. Other names for this target antigen include MICOS complex subunit MIC13 and protein QIL1. Gene orthologs have been identified in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species.