Anti-COPI coat complex subunit gamma 2 antibodies are used for the immunodetection of the protein encoded by the COPG2 gene. In humans, the canonical protein has a reported length of 871 amino acid residues and a mass of 97.6 kDa. Its subcellular localization is in the membrane, cytoplasmic vesicles, Golgi, and cytoplasm. Alternative splicing is reported to yield 2 different isoforms for this protein. A member of the COPG protein family, it is known to be involved with Golgi transport and intracellular protein transport. Other names for this target antigen include gamma-2-COP, coatomer subunit gamma-2, coat protein, nonclathrin, gamma-2-cop, coatomer protein complex subunit gamma 2, gamma-2-coat protein, and 2-COP. Gene orthologs have been identified in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species.