Anti-polymerase (DNA) epsilon 4, accessory subunit antibodies enable researchers to detect and measure the polymerase (DNA) epsilon 4, accessory subunit antigen in biological samples. This target is a reported synonym of the POLE4 gene, which encodes DNA polymerase epsilon 4, accessory subunit. This protein is known to function in DNA replication, among other biological roles. The human version of polymerase (DNA) epsilon 4, accessory subunit has a canonical amino acid length of 117 residues and a protein mass of 12.2 kilodaltons. It is reported to be localized in the nucleus of cells and widely expressed in many tissue types.