Anti-SLX9 antibodies are used in the immunodetection of the protein SLX9 ribosome biogenesis factor. In humans, the canonical protein has a reported length of 230 amino acid residues and a mass of 25.5 kDa. Its subcellular localization is in the nucleus. Up to 2 different isoforms have been reported for this protein. It is notably widely expressed in many tissue types. A member of the SLX9 protein family, SLX9 is suspected to be involved in ribosome biogenesis. Synonyms for this target antigen include family with sequence similarity 207 member A, protein FAM207A, and ribosome biogenesis protein SLX9 homolog. SLX9 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species.