Anti-MPHOSPH1 antibodies enable researchers to detect and measure the MPHOSPH1 antigen in biological samples. This target is a reported synonym of the KIF20B gene, which encodes kinesin family member 20B. This protein is known to function in the cell cycle, among other biological roles. The human version of MPHOSPH1 has a canonical amino acid length of 1820 residues and a protein mass of 210.6 kilodaltons, although 5 isoforms have been identified. It is reported to be notably expressed in many tissues, such as the bone marrow, testis, and adrenal gland. Other names for this target antigen include CT90 and KRMP1.