Anti-KRTAP12-1 antibodies are used in the immunodetection of the protein keratin associated protein 12-1. In humans, the canonical protein has a reported length of 96 amino acid residues and a mass of 9.7 kDa. It is a member of the KRTAP type 12 protein family. Synonyms for this target antigen include high sulfur keratin-associated protein 12.1 and keratin-associated protein 12.1.