Anti-XKR2 antibodies enable researchers to detect and measure the XKR2 antigen in biological samples. This target is a reported synonym of the XKRX gene, which encodes XK related X-linked. The human version of XKR2 has a canonical amino acid length of 449 residues and a protein mass of 52.1 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the cell membrane of cells. XKR2 is a member of the XK protein family.