Anti-HLA-DRB (MHC II)(DA2), CF405S conjugate

Anti-HLA-DRB (MHC II)(DA2), CF405S conjugate

• Description: This MAb reacts with a 28 kDa 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 36 kDa alpha (heavy) chain and a 28 kDa 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. Primary antibodies are available purified, or with a selection of fluorescent CF® Dyes and other labels. CF® Dyes offer exceptional brightness and photostability. Note: Conjugates of blue fluorescent dyes like CF®405S and CF®405M are not recommended for detecting low abundance targets, because blue dyes have lower fluorescence and can give higher non-specific background than other dye colors.
• Synonyms: DRB1; HLA class II histocompatibility antigen; DR-1 beta chain; HLA-DR-beta 1; HLA-DRB1; human leucocyte antigen DRB1; Leucocyte antigen DR beta 1 chain; lymphocyte antigen DRB1; major histocompatibility complex; class II; DR beta 1; MHC class II HLA-DR beta 1 chain; MHC class II HLA-DR-beta cell surface glycoprotein
• CAS Number: 9007-83-4
• UNSPSC: 41116161
• UNSPSC Description: Primary and secondary antibodies for multiple methodology immunostaining detection application
• Gene Name: HLA-DRB1
• Gene ID: 3123
• NCBI Gene ID: 534322
• UniProt: P01911
• Cellular Locus: Plasma membrane
• Host: Mouse
• Species Reactivity: Human, Monkey
• Immunogen: Activated human peripheral blood mononuclear cells
• Target Antigen: HLA-DRB
• Clonality: Monoclonal
• Isotype: IgG2b κ
• Clone: DA2
• Conjugation: CF405S
• Source: Animal
• Applications: IHC, FFPE (verified)
• Validated Applications: IHC, FFPE
• Positive Control: Ramos, Daudi or HuT78 cells. Tonsil or lymph node
• Concentration: 0.1 mg/mL
• Buffer: PBS, 0.1% BSA, 0.05% azide
• Molecular Weight: 28 kDa (beta chain)
• Shipping Conditions: Room temperature
• Storage Conditions: 4°C; Protect from light; Stable at room temperature or 37°C (98°F) for 7 days.
• Shelf Life: 2 years