Anti-distal membrane arm assembly component 2 antibodies are used for the immunodetection of the protein encoded by the DMAC2 gene. In humans, the canonical protein has a reported length of 257 amino acid residues and a mass of 29.3 kDa. Its subcellular localization is in the mitochondria. Alternative splicing is reported to yield 6 different isoforms for this protein. A member of the ATP synthase subunit s protein family, it is known to be required for the assembly of the mitochondrial NADH:ubiquinone oxidoreductase complex (complex I). Other names for this target antigen include distal membrane-arm assembly complex protein 2, ATP synthase subunit s-like protein, ATP5S like, distal membrane arm assembly complex 2, and ATP5SL. Gene orthologs have been identified in the mouse, rat, bovine, chimpanzee and chicken species.