Anti-ABCD2 antibodies are used in the immunodetection of the protein ATP binding cassette subfamily D member 2. In humans, the canonical protein has a reported length of 740 amino acid residues and a mass of 83.2 kDa. Its subcellular localization is in the peroxisomes. It is reported to be highly expressed in the brain and heart. A member of a the ABCD protein family, ABCD2 is reported to be an aTP-dependent transporter of the ATP-binding cassette (ABC) family involved in the transport of very long chain fatty acid (VLCFA)-CoA from the cytosol to the peroxisome lumen. Post-translational modifications have been described, including glycosylation. Synonyms for this target antigen include ALDL1, ALDR, ALDRP, hALDR, ATP-binding cassette, sub-family D (ALD), member 2, and ABC39.