Anti-D123 antibodies enable researchers to detect and measure the D123 antigen in biological samples. This target is a reported synonym of the CDC123 gene, which encodes cell division cycle 123. This protein is known to function in the cell cycle, among other biological roles. The human version of D123 has a canonical amino acid length of 336 residues and a protein mass of 39.1 kilodaltons. It is reported to be localized in the cytoplasm of cells and widely expressed in many tissue types. This target antigen may also be known as C10orf7.