Anti-DEFA1B antibodies are used in the immunodetection of the protein defensin alpha 1B. It is notably expressed in the bone marrow and spleen. Synonyms for this target antigen include neutrophil defensin 1. Some DEFa1B antibodies may have been used in research and have associated citations. Western Blot is a widely used application for these antibodies. ELISA and Immunohistochemistry are also common applications.