Anti-PP13 antibodies enable researchers to detect and measure the PP13 antigen in biological samples. This target is a reported synonym of the LGALS13 gene, which encodes galectin 13. This protein is known to function in the apoptotic pathway and the metabolism of lipids, among other biological roles. The human version of PP13 has a canonical amino acid length of 139 residues and a protein mass of 16.1 kilodaltons. It is reported to be localized in the nucleus and cytoplasm of cells.