HLA DRB1 Antibody (HLA-DRB/1067) [PE/Cy7]

PE/Cy7 (Excitation = 488 nm, Emission = 778 nm)

Monoclonal Mouse IgG2b Kappa Clone # HLA-DRB/1067

Please see the vial label for concentration. If unlisted please contact technical services.

Activated human peripheral blood mononuclear cells

Cell surface

This monoclonal antibody reacts with the beta-chain of HLA-DRB1 antigen, a member of MHC class II molecules. It does not cross react with HLA-DP and HLA-DQ. Its epitope is different from that of monoclonal antibody L243. 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 cytoplasmic 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.

Monoclonal

Mouse

IgG2b Kappa

Protein A or G purified

PBS

0.05% Sodium Azide

Please see the vial label for concentration. If unlisted please contact technical services.

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Store at 4C in the dark. Do not freeze.