Anti-REG-GAMMA antibodies enable researchers to detect and measure the REG-GAMMA antigen in biological samples. This target is a reported synonym of the PSME3 gene, which encodes proteasome activator subunit 3. This protein is known to function in the apoptotic pathway and the cell cycle, among other biological roles. The human version of REG-GAMMA has a canonical amino acid length of 254 residues and a protein mass of 29.5 kilodaltons, although 3 isoforms have been identified. It is reported to be localized in the nucleus and cytoplasm of cells and widely expressed in many tissue types. REG-GAMMA is a member of the PA28 protein family.