Anti-family with sequence similarity 64 member A antibodies enable researchers to detect and measure the family with sequence similarity 64 member A antigen in biological samples. This target is a reported synonym of the PIMREG gene, which encodes PICALM interacting mitotic regulator. This protein is known to function in the cell cycle, among other biological roles. The human version of family with sequence similarity 64 member A has a canonical amino acid length of 248 residues and a protein mass of 27.5 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the nucleus of cells.