{"product_id":"hla-drb1-antibody-biotin-conjugated-cat-csb-pa17949d0rb","title":"HLA-DRB1 Antibody, Biotin conjugated - Cat. #: CSB-PA17949D0Rb","description":"\u003cp\u003e\u003cb\u003eSize \u003c\/b\u003e:50ug\u003c\/p\u003e\u003cp\u003e\u003cb\u003eClone Number\u003c\/b\u003e:\u003c\/p\u003e\u003cp\u003e\u003cb\u003eAliases\u003c\/b\u003e:HLA class II histocompatibility antigen, DRB1-3 chain (Clone P2-beta-3) (MHC class II antigen DRB1*3), HLA-DRB1\u003c\/p\u003e\u003cp\u003e\u003cb\u003eProduct Type\u003c\/b\u003e:Polyclonal Antibody\u003c\/p\u003e\u003cp\u003e\u003cb\u003eImmunogen Species\u003c\/b\u003e:Homo sapiens (Human)\u003c\/p\u003e\u003cp\u003e\u003cb\u003eUniProt ID\u003c\/b\u003e:P01912\u003c\/p\u003e\u003cp\u003e\u003cb\u003eImmunogen\u003c\/b\u003e:Recombinant Human HLA class II histocompatibility antigen, DRB1-3 chain protein (31-266AA)\u003c\/p\u003e\u003cp\u003e\u003cb\u003eRaised in\u003c\/b\u003e:Rabbit\u003c\/p\u003e\u003cp\u003e\u003cb\u003eSpecies Reactivity\u003c\/b\u003e:Human\u003c\/p\u003e\u003cp\u003e\u003cb\u003eTested Applications\u003c\/b\u003e:ELISA, IHC; Recommended dilution: IHC:1:20-1:200\u003c\/p\u003e\u003cp\u003e\u003cb\u003eBackground\u003c\/b\u003e:Binds peptides derived from antigens that access the endocytic route of antigen presenting cells (APC) and presents them on the cell surface for recognition by the CD4 T-cells. The peptide binding cleft accommodates peptides of 10-30 residues. The peptides presented by MHC class II molecules are generated mostly by degradation of proteins that access the endocytic route; where they are processed by lysosomal proteases and other hydrolases. Exogenous antigens that have been endocytosed by the APC are thus readily available for presentation via MHC II molecules; and for this reason this antigen presentation pathway is usually referred to as exogenous. As membrane proteins on their way to degradation in lysosomes as part of their normal turn-over are also contained in the endosomal\/lysosomal compartments; exogenous antigens must compete with those derived from endogenous components. Autophagy is also a source of endogenous peptides; autophagosomes constitutively fuse with MHC class II loading compartments. In addition to APCs; other cells of the gastrointestinal tract; such as epithelial cells; express MHC class II molecules and CD74 and act as APCs; which is an unusual trait of the GI tract. To produce a MHC class II molecule that presents an antigen; three MHC class II molecules (heterodimers of an alpha and a beta chain) associate with a CD74 trimer in the ER to form an heterononamer. Soon after the entry of this complex into the endosomal\/lysosomal system where antigen processing occurs; CD74 undergoes a sequential degradation by various proteases; including CTSS and CTSL; leaving a small fragment termed CLIP (class-II-associated invariant chain peptide). The removal of CLIP is facilitated by HLA-DM via direct binding to the alpha-beta-CLIP complex so that CLIP is released. HLA-DM stabilizes MHC class II molecules until primary high affinity antigenic peptides are bound. The MHC II molecule bound to a peptide is then transported to the cell membrane surface. In B-cells; the interaction between HLA-DM and MHC class II molecules is regulated by HLA-DO. Primary dendritic cells (DCs) also to express HLA-DO. Lysosomal miroenvironment has been implicated in the regulation of antigen loading into MHC II molecules; increased acidification produces increased proteolysis and efficient peptide loading.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eClonality\u003c\/b\u003e:Polyclonal\u003c\/p\u003e\u003cp\u003e\u003cb\u003eIsotype\u003c\/b\u003e:IgG\u003c\/p\u003e\u003cp\u003e\u003cb\u003ePurification Method\u003c\/b\u003e:\u0026gt;95%, Protein G purified\u003c\/p\u003e\u003cp\u003e\u003cb\u003eConjugate\u003c\/b\u003e:Biotin\u003c\/p\u003e\u003cp\u003e\u003cb\u003eBuffer\u003c\/b\u003e:Preservative: 0.03% Proclin 300\u003cbr\u003eConstituents: 50% Glycerol, 0.01M PBS, PH 7.4\u003c\/p\u003e\u003cp\u003e\u003cb\u003eForm\u003c\/b\u003e:Liquid\u003c\/p\u003e\u003cp\u003e\u003cb\u003eStroage\u003c\/b\u003e:Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eTarget Names\u003c\/b\u003e:HLA-DRB1\u003c\/p\u003e\u003cp\u003e\u003cb\u003eResearch Areas\u003c\/b\u003e:Others\u003c\/p\u003e","brand":"Gene Bio Systems","offers":[{"title":"Default Title","offer_id":40484883136612,"sku":"CSB-PA17949D0Rb","price":484.78,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0558\/8588\/9636\/products\/no_image_default_image-jpeg_5c753455-bd7e-4efc-9e67-11b7beb614eb.jpg?v=1660109221","url":"https:\/\/www.genebiosystems.com\/products\/hla-drb1-antibody-biotin-conjugated-cat-csb-pa17949d0rb","provider":"GeneBio ","version":"1.0","type":"link"}