产品概述
| 产品名称(Product Name) | HLA-DRA (4K6) Rabbit Monoclonal Antibody |
| 描述(Description) | Rabbit Monoclonal Antibody |
| 宿主(Host) | Rabbit |
| 应用(Application) | WB,IHC-P,ICC/IF,FC,IF-P |
| 种属反应性(Reactivity) | Human |
产品性能
| 偶联物(Conjugation) | Unconjugated |
| 修饰(Modification) | Unmodified |
| 同种型(Isotype) | IgG |
| 克隆(Clonality) | Monoclonal |
| 形式(Form) | Liquid |
| 存放说明(Storage) | Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze/thaw cycles. |
| 储存溶液(Buffer) | Rabbit IgG in phosphate buffered saline , pH 7.4, 150mM NaCl, 0.02% New type preservative N and 50% glycerol. Store at +4°C short term. Store at -20°C long term. Avoid freeze / thaw cycle. |
| 纯化方式(Purification) | Affinity purification |
免疫原
| 基因名(Gene Name) | HLA-DRA |
| 别名(Alternative Names) | HLA-DR; MLRW; HLA-DRA1; MHC class II antigen DRA; HLA class II histocompatibility antigen, DR alpha chain; HLA DRB1; DRA; |
| 基因ID(Gene ID) | 3122 |
| 蛋白ID(SwissProt ID) | P01903 |
产品应用
| 稀释比(Dilution Ratio) | WB 1:1000-1:5000, IHC-P/IF-P 1:100-1:1000, ICC/IF 1:200-1:500, FCM 1:20-1:50 |
| 蛋白分子量(Molecular Weight) | 29kDa |
研究背景
HLA-DRA is one of the HLA class II alpha chain paralogues. This class II molecule is a heterodimer consisting of an alpha and a beta chain, 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). An alpha chain of antigen-presenting major histocompatibility complex class II (MHCII) molecule. In complex with the beta chain HLA- DRB, displays antigenic peptides on professional antigen presenting cells (APCs) for recognition by alpha-beta T cell receptor (TCR) on HLA-DR-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 (PubMed:29884618, PubMed:17334368, PubMed:8145819, PubMed:15322540, PubMed:22327072, PubMed:27591323, PubMed:31495665, PubMed:15265931, PubMed:9075930, PubMed:24190431). Typically presents extracellular peptide antigens of 10 to 30 amino acids that arise from proteolysis of endocytosed antigens in lysosomes (PubMed:8145819). 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 (PubMed:31495665). Presents peptides derived from intracellular proteins that are trapped in autolysosomes after macroautophagy, a mechanism especially relevant for T cell selection in the thymus and central immune tolerance (PubMed:17182262, PubMed:23783831). 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 (PubMed:25413013). 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 (PubMed:8145819).
研究领域
关键字: HLA-DRA;HLA-DRA;(4K6);Rabbit;Monoclonal;Antibody;一抗
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