Anti-BECN1 antibodies are used in the immunodetection of the protein beclin 1. In humans, the canonical protein has a reported length of 450 amino acid residues and a mass of 51.9 kDa. Its subcellular localization is in the membrane, cytoplasmic vesicles, mitochondria, ER, Golgi, and cytoplasm. It is ubiquitously expressed across many tissue types. A member of the Beclin protein family, BECN1 is known to play an important role in autophagy. Post-translational modifications have been described, including ubiquitination, protein cleavage and phosphorylation. Synonyms for this target antigen include VPS30, ATG6 autophagy related 6 homolog, beclin 1 (coiled-coil, moesin-like BCL2-interacting protein), beclin 1, autophagy related, and ATG6. BECN1 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. Over 3100 citations in the literature describe the use of BECN1 antibodies in research. Western Blot is a widely used application for these antibodies. Immunofluorescence and Immunohistochemistry are also common applications.