Anti-AP3M1 antibodies are used in the immunodetection of the protein adaptor related protein complex 3 subunit mu 1. In humans, the canonical protein has a reported length of 418 amino acid residues and a mass of 46.9 kDa. Its subcellular localization is in the cytoplasmic vesicles, golgi, and membrane. A member of a the Adaptor complexes medium subunit protein family, AP3M1 is known to be a part of the AP-3 complex, an adaptor-related complex which is not clathrin-associated. Synonyms for this target antigen include AP-3 adapter complex mu3A subunit, adapter-related protein complex 3 mu-1 subunit, adaptor related protein complex 3 mu 1 subunit, and AP-3 complex subunit mu-1.