Anti-AUP1 antibodies are used in the immunodetection of the protein AUP1 lipid droplet regulating VLDL assembly factor. In humans, the canonical protein has a reported length of 410 amino acid residues and a mass of 45.8 kDa. Its subcellular localization is in the cytoplasmic vesicles and ER. Up to 2 different isoforms have been reported for this protein. It is notably expressed in blood platelets and leukocytes. A member of the AUP1 protein family, AUP1 is reported to play a role in the translocation of terminally misfolded proteins from the endoplasmic reticulum lumen to the cytoplasm and their degradation by the proteasome. Synonyms for this target antigen include lipid droplet-regulating VLDL assembly factor AUP1 and ancient ubiquitous protein 1. AUP1 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. A number of AUP1 antibodies have been mentioned in research publications and have associated citations. Western Blot is a widely used application for these antibodies. ELISA and Immunohistochemistry are also common applications.