Anti-AD1 antibodies enable researchers to detect and measure the AD1 antigen in biological samples. This target is a reported synonym of the APP gene, which encodes amyloid beta precursor protein. This protein is known to function in GPCR signaling pathways, among other biological roles. The human version of AD1 has a canonical amino acid length of 770 residues and a protein mass of 86.9 kilodaltons, although 11 isoforms have been identified. It is reported to be localized in the cell membrane, cytoplasmic vesicles, and cytoplasm of cells and notably expressed in the hippocampus, duodenum, cerebral cortex, cerebellum, and caudate. Other names for this target antigen include AAA, ABETA, and ABPP. Some AD1 antibodies may have been used in research and have associated citations. Western Blot is a widely used application for these antibodies. ELISA and Immunohistochemistry are also common applications.