HLA-DRB (MHC II)

• Gene Name: [HLA-DRB]
• NCBI Gene ID: 3123
• Reactivity: Human, Monkey
  Does not react with Mouse.
• Storage Conditions: Antibody with azide: store at 2 to 8 degree C.
  Antibody without azide: store at -20 to -80 degree C.
  Antibody is stable for 24 months. Non-hazardous. No MSDS required.
• Specificity: This MAb reacts with a 28kDa chain of HLA-DRB1 antigen, a member of MHC class II molecules. It does not cross react with HLA-DP and HLA-DQ. The L243 antibody recognizes a different epitope than the LN3 monoclonal antibody, and these antibodies do not cross-block binding to each other's 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. Loss of HLA-DR expression is related to tumor microenvironment and predicts adverse outcome in diffuse large B-cell lymphoma.
• Other Gene Names: [HLA-DRB1; HLA-DRB1; SS1; DRB1; HLA-DRB; HLA-DR1B; HLA-DRB2]
• Short Name: [HLA-DRB]
• Other Product Names: [major histocompatibility complex, class II, DR beta 1; HLA class II histocompatibility antigen, DRB1-15 beta chain; major histocompatibility complex, class II, DR beta 1; major histocompatibility complex, class II, DR beta 1; DW2.2/DR2.2; MHC class II antigen DRB1*15]
• NCBI GI Number: 155030211
• NCBI Accession Number: NP_002115.2
• NCBI GB Accession Number: NP_002115.2
• Uniprot Accession Number: P01911