Anti-SKMc15 antibodies enable researchers to detect and measure the SKMc15 antigen in biological samples. This target is a reported synonym of the IFRD2 gene, which encodes interferon related developmental regulator 2. The human version of SKMc15 has a canonical amino acid length of 506 residues and a protein mass of 54.8 kilodaltons, although 2 isoforms have been identified. It is reported to be widely expressed in many tissue types. Other names for this target antigen include IFNRP and SM15.