Anti-Xip1 antibodies enable researchers to detect and measure the Xip1 antigen in biological samples. This target is a reported synonym of the APLF gene, which encodes aprataxin and PNKP like factor. This protein is known to function in DNA damage pathways and DNA repair, among other biological roles. The human version of Xip1 has a canonical amino acid length of 511 residues and a protein mass of 57 kilodaltons. It is reported to be localized in the nucleus and cytoplasm of cells. Xip1 is a member of the APLF protein family.