HLA-DRB (MHC II) Antibody - With BSA and Azide, Clone: [L243], Mouse, Monoclonal
Biozol Catalog Number:
ABT-AH11451-U0100
Supplier Catalog Number:
AH11451-U0100
Alternative Catalog Number:
ABT-AH11451-U0100-100UG
Manufacturer:
Abcepta
Host:
Mouse
Category:
Antikörper
Application:
FC, IF
Species Reactivity:
Human, Primate
Alternative Names:
HLA class II histocompatibility antigen, DRB1-15 beta chain, DW2.2/DR2.2, MHC class II antigen DRB1*15, HLA-DRB1, HLA-DRB2
This MAb reacts with the HLA-DRB1 antigen, a member of MHC class II molecules. It does not cross react with HLA-DP and HLA-DQ. It binds a conformational epitope on HLA-DR, which depends on the correct folding of the Ī Ī heterodimer. This MAb has been reported to block mixed lymphocyte reactions. 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 36kD alpha (heavy) chain and a 28kD 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.