Product details
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HLA-DRB5 rabbit pAb
Ucallm_WP8361-50
Price range: $268.00 through $328.00
Specifications
| Size | 50μL/100μL |
| Target | HLA-DRB5 |
| Reactivity | Human |
| Applications | WB |
| MW(Calculated) | 29kD |
| MW(Observed) | |
| Host Species | Rabbit |
| Isotype | IgG |
| Conjugate/Modification | Unmodified |
| Recommended Dilution Ratio | WB 1:500-2000 |
| Formulation | Liquid in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide. |
| Purification | The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen. |
| Storage | -15°C to -25°C/1 year(Do not lower than -25°C) |
| Concentration | 1 mg/ml |
| Clonality | Polyclonal |
| Clone Number | |
| Immunogen | Synthesized peptide derived from human HLA-DRB5 |
| Specificity | This antibody detects endogenous levels of HLA-DRB5 at Human |
| Gene Name | HLA-DRB5 |
| Protein Name | HLA class II histocompatibility antigen, DR beta 5 chain (DR beta-5) (DR2-beta-2) (Dw2) (MHC class II antigen DRB5) |
| Other Name | |
| Species | Human |
| Gene ID | 3127 |
| Uniprot | Q30154 |
| Species.1 | |
| Gene ID.1 | |
| Uniprot.1 | |
| Species.2 | |
| Gene ID.2 | |
| Uniprot.2 | |
| Cellular Localization | Cell membrane; Single-pass type I membrane protein . Endoplasmic reticulum membrane; Single-pass type I membrane protein . Golgi apparatus, trans-Golgi network membrane; Single-pass type I membrane protein . Endosome membrane; Single-pass type I membrane protein . Lysosome membrane; Single-pass type I membrane protein . Late endosome membrane; Single-pass type I membrane protein . The MHC class II complex transits through a number of intracellular compartments in the endocytic pathway until it reaches the cell membrane for antigen presentation. |
| Tissue Expression | |
| Signaling_pathway | Cellular Processes >> Transport and catabolism >> Phagosome;Organismal Systems >> Immune system >> Hematopoietic cell lineage;Organismal Systems >> Immune system >> Antigen processing and presentation;Organismal Systems >> Immune system >> Th1 and Th2 cell differentiation;Organismal Systems >> Immune system >> Th17 cell differentiation;Organismal Systems >> Immune system >> Intestinal immune network for IgA production;Human Diseases >> Immune disease >> Asthma;Human Diseases >> Immune disease >> Systemic lupus erythematosus;Human Diseases >> Immune disease >> Rheumatoid arthritis;Human Diseases >> Immune disease >> Autoimmune thyroid disease;Human Diseases >> Immune disease >> Inflammatory bowel disease;Human Diseases >> Immune disease >> Allograft rejection;Human Diseases >> Immune disease >> Graft-versus-host disease;Environmental Information Processing >> Signaling molecules and interaction >> Cell adhesion molecules |
| Research Areas | |
| Function | 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 a 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 microenvironment has been implicated in the regulation of antigen loading into MHC II molecules, increased acidification produces increased proteolysis and efficient peptide loading. |
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