Anti-ankyrin repeat domain 13 family member D antibodies enable researchers to detect and measure the ankyrin repeat domain 13 family member D antigen in biological samples. This target is a reported synonym of the ANKRD13D gene, which encodes ankyrin repeat domain 13D. This protein is reported to be an ubiquitin-binding protein that specifically recognizes and binds 'Lys-63'-linked ubiquitin. The human version of ankyrin repeat domain 13 family member D has a canonical amino acid length of 605 residues and a protein mass of 68.2 kilodaltons, although 3 isoforms have been identified. It is reported to be localized in the cell membrane of cells and widely expressed in many tissue types.