Anti-HLA-DR3B antibodies enable researchers to detect and measure the HLA-DR3B antigen in biological samples. This target is a reported synonym of the HLA-DRB3 gene, which encodes major histocompatibility complex, class II, DR beta 3. This protein is known to function in adaptive immune responses and signal transduction pathways, among other biological roles. The human version of HLA-DR3B has a canonical amino acid length of 266 residues and a protein mass of 30 kilodaltons. It is reported to be localized in the ER, lysosomes, and cell membrane of cells. Other names for this target antigen include DRB3, HLA-DPB1, and HLA-DR1B. Indicated applications for HLA-DR3B antibodies listed below include Western Blot and Immunohistochemistry.