Anti-KRTAP13-4 antibodies are used in the immunodetection of the protein keratin associated protein 13-4. In humans, the canonical protein has a reported length of 160 amino acid residues and a mass of 17.8 kDa. It is a member of the PMG protein family. KRTAP13-4 gene orthologs have been reported in the mouse species. These KRTAP13-4 antibodies are widely used in ELISA experiments, among other applications.