Anti-DFFRX antibodies enable researchers to detect and measure the DFFRX antigen in biological samples. This target is a reported synonym of the USP9X gene, which encodes ubiquitin specific peptidase 9 X-linked. This protein is known to function in cell division and cell migration, among other biological roles. The human version of DFFRX has a canonical amino acid length of 2554 residues and a protein mass of 290.5 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the cytoplasm of cells and widely expressed in many tissue types. Other names for this target antigen include FAF and FAM.