Recombinant Human HLA-DRB1 Protein (Gly30-Ser266), His tagged

• Cat.No.: HLA-DRB1-2946H
• Product Overview: Recombinant human HLA-DRB1 (Gly30-Ser266) protein fused with His tag was expressed in E. coli.

Specification

• Species: Human
• Source: E.coli
• Tag: His
• Protein Length: Gly30-Ser266
• Description: A beta chain of antigen-presenting major histocompatibility complex class II (MHCII) molecule. In complex with the alpha chain HLA-DRA, displays antigenic peptides on professional antigen presenting cells (APCs) for recognition by alpha-beta T cell receptor (TCR) on HLA-DRB1-restricted CD4-positive T cells. This guides antigen-specific T helper effector functions, both antibody-mediated immune response and macrophage activation, to ultimately eliminate the infectious agents and transformed cells. Typically presents extracellular peptide antigens of 10 to 30 amino acids that arise from proteolysis of endocytosed antigens in lysosomes. In the tumor microenvironment, presents antigenic peptides that are primarily generated in tumor-resident APCs likely via phagocytosis of apoptotic tumor cells or macropinocytosis of secreted tumor proteins. The selection of the immunodominant epitopes follows two processing modes:' bind first, cut/trim later' for pathogen-derived antigenic peptides and' cut first, bind later' for autoantigens/self-peptides. The anchor residue at position 1 of the peptide N-terminus, usually a large hydrophobic residue, is essential for high affinity interaction with MHCII molecules
• Molecular Mass: 28.83 kDa
• Purity: >90 % as determined by SDS-PAGE.
• Notes: For research use only.
• Storage: Use a manual defrost freezer and avoid repeated freeze thaw cycles. Store at 2 to 8 centigrade for one week. Store at -20 to -80 centigrade for twelve months from the date of receipt.
• Storage Buffer: Supplied as solution form in PBS pH 7.5 or lyophilized from PBS pH 7.5.
• Reconstitution: Reconstitute in sterile water for a stock solution.
• Shipping: In general, proteins are provided as lyophilized powder/frozen liquid. They are shipped out with dry ice/blue ice unless customers require otherwise.

Gene Information

• Gene Name: HLA-DRB1 major histocompatibility complex, class II, DR beta 1 [ Homo sapiens (human) ]
• Official Symbol: HLA-DRB1
• Synonyms: HLA-DRB1; major histocompatibility complex, class II, DR beta 1; HLA DR1B; DW2.2/DR2.2; MHC class II antigen; lymphocyte antigen DRB1; MHC class II HLA-DRw10-beta; human leucocyte antigen DRB1; MHC class II HLA-DR beta 1 chain; MHC class II HLA-DR-beta cell surface glycoprotein; HLA class II histocompatibility antigen, DR-1 beta chain; SS1; DRB1; DRw10; HLA-DRB; HLA-DR1B; FLJ75017; FLJ76359
• Gene ID: 3123
• mRNA Refseq: NM_001243965
• Protein Refseq: NP_001230894
• MIM: 142857
• UniProt ID: P01911