Anti-ATG3 antibodies are used in the immunodetection of the protein autophagy related 3. In humans, the canonical protein has a reported length of 314 amino acid residues and a mass of 35.9 kDa. Its subcellular localization is in the cytoplasm. Up to 2 different isoforms have been reported for this protein. It is found to be widely expressed, with a highest expression in the heart, skeletal muscle, kidney, liver and placenta. A member of the ATG3 protein family, ATG3 is known to be involved with autophagy pathways and the apoptotic pathway. Post-translational modifications have been described, including protein cleavage. Synonyms for this target antigen include APG3 autophagy 3-like, ATG3 autophagy related 3 homolog, autophagy-related protein 3, and ubiquitin-like-conjugating enzyme ATG3. ATG3 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. Over 310 citations in the literature describe the use of ATG3 antibodies in research. Western Blot is a widely used application for these antibodies. Immunofluorescence and Immunohistochemistry are also common applications.