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Anti-HLADQA1+HLADQA2 Polyclonal Antibody
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Catalog No. TMAB-07164
Anti-HLADQA1+HLADQA2 Polyclonal Antibody is a Rabbit antibody targeting HLADQA1+HLADQA2. Anti-HLADQA1+HLADQA2 Polyclonal Antibody can be used in WB.
Anti-HLADQA1+HLADQA2 Polyclonal Antibody
Anti-HLADQA1+HLADQA2 Polyclonal Antibody
😃Good
Catalog No. TMAB-07164
Anti-HLADQA1+HLADQA2 Polyclonal Antibody is a Rabbit antibody targeting HLADQA1+HLADQA2. Anti-HLADQA1+HLADQA2 Polyclonal Antibody can be used in WB.
| Pack Size | Price | USA Warehouse | Global Warehouse | Quantity |
|---|---|---|---|---|
| 50 μL | $223 | 7-10 days | 7-10 days | |
| 100 μL | $371 | 7-10 days | 7-10 days | |
| 200 μL | $527 | 7-10 days | 7-10 days |
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In Stock Estimated shipping dateUSA Warehouse[1-2 days] Global Warehouse[5-7 days]
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Product Introduction
Bioactivity
Antigen Details
Chemical Properties
| Description | Anti-HLADQA1+HLADQA2 Polyclonal Antibody is a Rabbit antibody targeting HLADQA1+HLADQA2. Anti-HLADQA1+HLADQA2 Polyclonal Antibody can be used in WB. |
| Ig Type | IgG |
| Reactivity | Human (predicted:Chimpanzee, Cynomolgus Monkey) |
| Application | |
| Recommended Dose | WB: 1:500-2000 |
| Antibody Type | Polyclonal |
| Host Species | Rabbit |
| Subcellular Localization | Cell membrane. Endoplasmic reticulum membrane. Golgi apparatus > trans-Golgi network membrane. Endosome membrane. Lysosome membrane. 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 Specificity | Expressed at low levels at the surface of B lymphoblastoid cells. |
| Construction | Polyclonal Antibody |
| Purification | Protein A purified |
| Appearance | Liquid |
| Formulation | 0.01M TBS (pH7.4) with 1% BSA, 0.02% Proclin300 and 50% Glycerol. |
| Concentration | 1mg/ml |
| Research Background | 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 accomodates 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. |
| Immunogen | KLH conjugated synthetic peptide: human HLADQA1 + HLADQA2 |
| Antigen Species | Human |
| Gene Name | HLA-DQA2 |
| Gene ID | |
| Protein Name | HLA class II histocompatibility antigen, DQ alpha 2 chain |
| Uniprot ID | |
| Function | HLADQA1 belongs to the HLA class II alpha chain paralogues. The class II molecule is a heterodimer consisting of an alpha (DQA) and a beta chain (DQB), both anchored in the membrane. It plays a central role in the immune system by presenting peptides derived from extracellular proteins. Class II molecules are expressed in antigen presenting cells (APC: B Lymphocytes, dendritic cells, macrophages). HLADQA2 forms a heterodimer with a class II beta chain. It is located in intracellular vesicles and plays a central role in the peptide loading of MHC class II molecules by helping to release the CLIP molecule from the peptide binding site. |
| Molecular Weight | Theoretical: 26 kDa. |
Stability & Storage
| Stability & Storage | Store at 2°C-8°C for 1 month. Store at -20°C or -80°C for 12 months. Avoid repeated freeze-thaw cycles. |
| Transport | Shipping with blue ice. |
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