HLA DRB1 Antibody (SPM289) - IHC-Prediluted

Unconjugated

Monoclonal Mouse IgG2b Kappa Clone # SPM289

IHC-Prediluted

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-DR 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 SPM289 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.

Monoclonal

Mouse

IgG2b Kappa

The prediluted antibody does not require any mixing, dilution, reconstitution, or titration; the antibody is ready-to-use and optimized for staining.

Protein A or G purified

10 mM PBS with 0.05% BSA

IHC-Prediluted

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.