Anti-PA200 antibodies enable researchers to detect and measure the PA200 antigen in biological samples. This target is a reported synonym of the PSME4 gene, which encodes proteasome activator subunit 4. This protein is known to function in DNA damage pathways and DNA repair, among other biological roles. The human version of PA200 has a canonical amino acid length of 1843 residues and a protein mass of 211.3 kilodaltons, although 4 isoforms have been identified. It is reported to be localized in the nucleus and cytoplasm of cells and widely expressed in many tissue types. This target antigen may also be known as proteasome activator complex subunit 4. Some PA200 antibodies may have been used in research and have associated citations. Indicated applications for the antibodies listed below include ELISA and Western Blot.