Anti-OK/SW-cl.56 antibodies enable researchers to detect and measure the OK/SW-cl.56 antigen in biological samples. This target is a reported synonym of the TUBB gene, which encodes tubulin beta class I. This protein is known to function in cell division and cytoskeleton organization, among other biological roles. The human version of OK/SW-cl.56 has a canonical amino acid length of 444 residues and a protein mass of 49.7 kilodaltons. It is reported to be localized in the cytoplasm of cells and widely expressed in many tissue types. OK/SW-cl.56 is a member of the Tubulin protein family.