Anti-DEFB137 antibodies are used in antigen-specific immunodetection in biological samples. The target DEFB137 is a known alias name of the protein defensin beta 136, encoded by the DEFB136 gene in humans. This 78-amino acid residue protein is a member of the Beta-defensin protein family. The protein is secreted and features post-translational modifications. It is reported to be expressed in the epididymis.