Anti-BTD antibodies are used in the immunodetection of the protein biotinidase. In humans, the canonical protein has a reported length of 543 amino acid residues and a mass of 61.1 kDa. It has been described to be a secreted protein. Up to 4 different isoforms have been reported for this protein. A member of the BTD/VNN protein family, BTD is known to be involved with nervous system development. Post-translational modifications have been described, including glycosylation. The BTD gene has been associated with the disease, Biotinidase deficiency. Synonyms for this target antigen include biotinase. BTD gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. Some BTD antibodies may have been used in research and have associated citations. ELISA, Western Blot, and Immunohistochemistry are common applications for these antibodies.