Anti-karyopherin alpha 5 (importin alpha 6) antibodies enable researchers to detect and measure the karyopherin alpha 5 (importin alpha 6) antigen in biological samples. This target is a reported synonym of the KPNA5 gene, which encodes karyopherin subunit alpha 5. This protein is reported to function in nuclear protein import as an adapter protein for nuclear receptor KPNB1. The human version of karyopherin alpha 5 (importin alpha 6) has a canonical amino acid length of 539 residues and a protein mass of 60.7 kilodaltons. It is reported to be localized in the cytoplasm of cells and notably expressed in many tissues, such as the bone marrow, testis, and appendix. Other names for this target antigen include IPOA6, SRP6, and importin subunit alpha-6.