Anti-HB2A antibodies enable researchers to detect and measure the HB2A antigen in biological samples. This target is a reported synonym of the KRTAP1-1 gene, which encodes keratin associated protein 1-1. The human version of HB2A has a canonical amino acid length of 177 residues and a protein mass of 18.2 kilodaltons. HB2A is a member of the KRTAP type 1 protein family.