Mouse HLA Class II Histocompatibility Antigen, DQ Beta 1 Chain (HLA-DQB1) CLIA Kit
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Description
Mouse HLA Class II Histocompatibility Antigen, DQ Beta 1 Chain (HLA-DQB1) Chemiluminescent Immunoassay (CLIA) Kit is a Sandwich Chemiluminescent Immunoassay (CLIA) Kit for use with Tissue homogenates, cell lysates and other biological fluids.
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Product specifications
| Category | CLIA Kits |
| Immunogen Target | HLA Class II Histocompatibility Antigen, DQ Beta 1 Chain (HLA-DQB1) |
| Reactivity | Mouse |
| Detection Method | Chemiluminescent |
| Assay Data | Quantitative |
| Assay Type | Sandwich |
| Test Range | 0.156 ng/ml - 10 ng/ml |
| Sensitivity | < 0.065 ng/ml |
| Recommended Dilution | Optimal dilutions/concentrations should be determined by the end user. |
| Size 1 | 96 tests |
| Size 2 | 5 × 96 tests |
| Size 3 | 10 × 96 tests |
| Form | Standard: Lyophilized |
| Tested Applications | CLIA |
| Sample Type | Tissue homogenates, cell lysates and other biological fluids. |
| Availability | Shipped within 5-20 working days. |
| Storage | Shipped at 4°C. Upon receipt, store the kit according to the storage instruction in the kit's manual. |
| Dry Ice | No |
| Background | CLIA Kits HLA-DQB1 |
| Status | RUO |
| Note | THIS PRODUCT IS FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES. The range and sensitivity is subject to change. Please contact us for the latest product information. For accurate results, sample concentrations must be diluted to mid-range of the kit. If you require a specific range, please contact us in advance or write your request in your order comments. Please note that our kits are optimised for detection of native samples, rather than recombinant proteins. We are unable to guarantee detection of recombinant proteins, as they may have different sequences or tertiary structures to the native protein. The stability of the kit is determined by the rate of activity loss. The loss rate is less than 5% within the expiration date under appropriate storage conditions. To minimize performance fluctuations, operation procedures and lab conditions should be strictly controlled. It is also strongly suggested that the whole assay is performed by the same user throughout. |
Descripción
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HLA-DQB1 antibody
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HLA Class II Histocompatibility Antigen, DQ Beta 1 Chain (HLA-DQB1) Antibody
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.
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