HLA DRB1 Antibody (SPM423) - Azide and BSA Free

Validated:

Unconjugated

Monoclonal Mouse IgG2b Kappa Clone # SPM423

Azide and BSA Free

1 mg/ml

Activated human peripheral blood mononuclear cells

Does not react with Mouse.

Cell Surface

This monoclonal antibody 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 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. Loss of HLA-DR expression is related to tumor microenvironment and predicts adverse outcome in diffuse large B-cell lymphoma.

Monoclonal

Mouse

IgG2b Kappa

1.0 mg/ml of antibody purified from Bioreactor Concentrate by Protein A/G. Prepared in 10mM PBS WITHOUT BSA & azide. Also available at 200 ug/ml WITH BSA & azide (NBP2-45313).

Antibody with azide - store at 2 to 8C. Antibody without azide - store at -20 to -80C.

Protein A or G purified

10 mM PBS

Azide and BSA Free

No Preservative

1 mg/ml

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

Store at -20 to -80C. Avoid freeze-thaw cycles.