Anti-TMEM219 antibodies are used in the immunodetection of the protein transmembrane protein 219. In humans, the canonical protein has a reported length of 240 amino acid residues and a mass of 25.7 kDa. Its subcellular localization is in the cell membrane. It is found to be widely expressed in normal tissues but suppressed in prostate and breast tumor. TMEM219 is known to be involved with the apoptotic pathway. Post-translational modifications have been described, including glycosylation. Synonyms for this target antigen include insulin-like growth factor-binding protein 3 receptor and testicular tissue protein Li 203. TMEM219 gene orthologs have been reported in the mouse, rat, bovine and chimpanzee species. Some TMEM219 antibodies may have been used in research and have associated citations. Western Blot is a widely used application for these antibodies. In addition, Immunohistochemistry is also a common application.