Anti-COPI coat complex subunit zeta 2 antibodies are used for the immunodetection of the protein encoded by the COPZ2 gene. In humans, the canonical protein has a reported length of 210 amino acid residues and a mass of 23.5 kDa. Its subcellular localization is in the membrane, cytoplasmic vesicles, ER, Golgi, and cytoplasm. A member of the Adaptor complexes small subunit protein family, it is known to be involved with intracellular protein transport. Other names for this target antigen include coatomer subunit zeta-2, coatomer protein complex subunit zeta 2, nonclathrin coat protein zeta-COP, zeta-2 COP, zeta-2-coat protein, and zeta2-COP. Gene orthologs have been identified in the mouse, rat, bovine, frog and chimpanzee species.