Anti-replication protein A4, 30kDa antibodies enable researchers to detect and measure the replication protein A4, 30kDa antigen in biological samples. This target is a reported synonym of the RPA4 gene, which encodes replication protein A4. This protein is known to function in DNA damage pathways and DNA repair, among other biological roles. The human version of replication protein A4, 30kDa has a canonical amino acid length of 261 residues and a protein mass of 28.9 kilodaltons. It is reported to be localized in the nucleus of cells and widely expressed in many tissue types. Other names for this target antigen include HSU24186, replication protein A 30 kDa subunit, and RF-A protein 4.