Anti-adaptor-related protein complex 3, beta 1 subunit antibodies enable researchers to detect and measure the adaptor-related protein complex 3, beta 1 subunit antigen in biological samples. This target is a reported synonym of the AP3B1 gene, which encodes adaptor related protein complex 3 subunit beta 1. This protein is known to function in the differentiation of certain cell types, among other biological roles. The human version of adaptor-related protein complex 3, beta 1 subunit has a canonical amino acid length of 1094 residues and a protein mass of 121.3 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the cytoplasmic vesicles, Golgi, and membrane of cells and widely expressed in many tissue types. Other names for this target antigen include ADTB3, ADTB3A, and HPS.