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HLA-DRB4 Rabbit Polyclonal Antibody  Cite:0    分享

货号： IM67655
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  • 种属：H
  • 用途：WB
规格:
50μl 100μl
单位:
支
单价:￥1500.00
产品简介
储存与保存
注意事项
产品简介
  • 产品名称
    HLA-DRB4 Rabbit Polyclonal Antibody
  • 类别
    抗体产品
  • 基因名称
    HLA-DRB4
  • 蛋白名称
    HLA class II histocompatibility antigen, DR beta 4 chain (MHC class II antigen DRB4)
  • Clonality
    Polyclonal
  • 推荐应用
    WB
  • 稀释度
    WB 1:500-2000
  • 反应种属
    Human
  • 浓度
    1 mg/ml
  • 制备方法
    The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.
  • 存储缓冲液
    Liquid in PBS containing 50% glycerol, 0.5% BSA and 0.02% New type preservative N.
  • Human Gene ID
    3126
  • Human Swissprot No.
    P13762
  • 特异性
    This antibody detects endogenous levels of HLA-DRB4 at Human
  • 预测分子量
    29kDa
  • 细胞定位
    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.
  • 功能
    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.
储存与保存

1.保存：-20℃，Avoid freeze/thaw cycles

2.有效期：1年

注意事项

1. 本产品仅供科研使用。请勿用于医药、临床诊断或治疗，食品及化妆品等用途。请勿存放于普通住宅区。 

2. 为了您的安全和健康，请穿好实验服并佩戴一次性手套和口罩操作。 

3. 实验结果可由多种因素影响，相关处理只限于产品本身，不涉及其他赔偿。 

 

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