Recombinant fragment (around aa1-200) of human HLA-DR protein (exact sequence is proprietary)
Alternative Synonym:
DRB1, DRB4, HLA class II histocompatibility antigen DR alpha chain, HLA DR1B, HLA DR3B, HLA DRA, HLA DRA1, HLA DRB1, HLA DRB3, HLA DRB4, HLA DRB5, HLA-DRA, HLADR4B, HLADRA1, HLADRB, Major histocompatibility complex class II DR beta 1 / 3/ 4, Major histocompatibility complex class II DR beta 5, MHC cell surface glycoprotein
This MAb reacts with the beta-chain of HLA-DR antigen, a member of MHC class II molecules. vC OOIt does not cross react with HLA-DP and HLA-DQ. The L243 antibody recognizes a different epitope than the HLA-DRA/6839R monoclonal antibody, and these antibodies do not cross-block binding to each others respective epitopes. HLA-DR is a heterodimeric cell surface glycoprotein comprised of a 36kDa alpha (heavy) chain and a 28kDa beta (light) chain. It is expressed on B-cells, activated T-cells, monocytes/macrophages, dendritic cells and other non-professional APCs. In conjunction with the CD3/TCR complex and CD4 molecules, HLA-DR is critical for efficient peptide presentation to CD4+ T cells. It is an excellent histiocytic marker in paraffin sections producing intense staining. True histiocytic neoplasms are similarly positive. HLA-DR antigens also occur on a variety of epithelial cells and their corresponding neoplastic counterparts.
Ab produced in HEK293 cell mammalian-based expression system. Prepared in 10mM PBS with 0.05% BSA & 0.05% azide. Also available WITHOUT BSA & azide.
HLA class II histocompatibility antigen, DR alpha chain Rabbit Recombinant Monoclonal Antibody (MSVA-470R) tested on many normal and cancer tissues. The immunohistochemistry staining in these tissues aligns with the expression data in Human Protein Atlas.
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