Anti-KRTHB1 antibodies enable researchers to detect and measure the KRTHB1 antigen in biological samples. This target is a reported synonym of the KRT81 gene, which encodes keratin 81. The human version of KRTHB1 has a canonical amino acid length of 505 residues and a protein mass of 54.9 kilodaltons. It is reported to be notably expressed in the hair. KRTHB1 is a member of the Intermediate filament protein family.