Anti-CK26 antibodies enable researchers to detect and measure the CK26 antigen in biological samples. This target is a reported synonym of the KRT26 gene, which encodes keratin 26. This protein is known to function in epithelial cell differentiation, among other biological roles. The human version of CK26 has a canonical amino acid length of 468 residues and a protein mass of 51.9 kilodaltons. It is reported to be notably expressed in the hair. CK26 is a member of the Intermediate filament protein family.