Anti-GCP2 antibodies enable researchers to detect and measure the GCP2 antigen in biological samples. This target is a reported synonym of the GOLGA4 gene, which encodes golgin A4. This protein is known to function in vesicle-mediated transport, among other biological roles. The human version of GCP2 has a canonical amino acid length of 2230 residues and a protein mass of 261.1 kilodaltons, although 4 isoforms have been identified. It is reported to be localized in the membrane, Golgi, and cytoplasm of cells and widely expressed in many tissue types.