HLA-DRB1 (基因名), HLA class II histocompatibility antigen, DRB1-9 beta chain (蛋白名), 2b19_human.
产品名称:
HLA-DRB1 Antibody
货号:
P15037Rb-h
商标:
EIAab®
监管等级:
别名:
MHC class II antigen DRB1*9, DR-9
序列号:
Q9TQE0
反应性:
human
免疫原:
Recombinant human HLA-DRB1 protein ( R15037h )
形态:
Liquid
存储说明:
4℃ for frequent use, -20℃ to -70℃ for 6 months
缓冲液:
0.1M×PBS,50% glycerol,pH7.5
浓度:
200ug/ml
纯化方式:
Immunogen affinity purified
克隆性:
Polyclonal
亚型:
Rabbit IgG
应用:
推荐产品:
研究领域:
-
R&D 技术数据
通用注释
亚单元:
Heterodimer of an alpha and a beta subunit; also referred as MHC class II molecule. In the endoplasmic reticulum (ER) it forms a heterononamer; 3 MHC class II molecules bind to a CD74 homotrimer (also known as invariant chain or HLA class II histocompatibility antigen gamma chain). In the endosomal/lysosomal system; CD74 undergoes sequential degradation by various proteases; leaving a small fragment termed CLIP on each MHC class II molecule. MHC class II molecule interacts with HLA_DM, and HLA_DO in B-cells, in order to release CLIP and facilitate the binding of antigenic peptides.
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.
亚细胞位置:
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.
该产品尚未在任何出版物中被引用。
[1].
多克隆抗体HLA-DRB1可以申请产品的免费试用装吗?
我们不提供作测试目的的免费样品或试用装样品。如果某种抗体的性能与说明书上的数据说明不同,我们将提供换货或退款服务。如果抗体用于未测试的物种或应用,我们不提供换货或退款服务。EIAab产品的投诉期为6个月,逾期不予受理。
[2].
多克隆抗体HLA-DRB1说明书上的信息是及时更新的吗?
说明书包含了我们能获得的关于该产品的最新信息。当我们获得另外的信息时,说明书会实时更新,因此说明书绝不会过时。
[3].
如何选择合适的一抗?
请先确定您要检测的种属和使用的实验方法,然后查找相关产品,根据说明书上描述的“种属和应用”来确定合适的抗体。如果说明书中有明确您要检测的种属和实验方法均经过检测,则您可以放心地购买该产品。
[4].
多克隆抗体HLA-DRB1在其他物种或应用中测试过吗?
所有我们测试过抗体的物种和应用都会在说明书上说明。我们获取新信息后,就会立即更新物种和应用。
[5].
如何保存多克隆抗体HLA-DRB1?
我们建议始终按照说明书上的方法保存抗体。如果没有按照说明书上的说明保存,我们不能保证抗体的性能。
[6].
如何分装多克隆抗体HLA-DRB1?
请根据一次实验的常用量进行分装。每等份不应少于10μl;每等份的量越少,抗体储液浓度受蒸发和管壁吸附的影响越大。
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