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组织相容性复合体2DQB1/2多克隆抗体

HLA-DQB1/2 Polyclonal Antibody

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商品信息

产品英文名称 HLA-DQB1/2 Polyclonal Antibody
免疫原 合成多肽:来源于中间区域的人源蛋白HLA-DQB1/2.
宿主
反应性
应用 ELISA, IHC-P, WB
实验建议 最佳的工作稀释比例需要客户摸索优化。建议的起始尝试的稀释比为:WB:1:500-1:2000,IHC-p:1:100-1:300,ELISA:1:20000。 尚未在其他应用中测试。
克隆性 多克隆
纯化工艺 使用表位特异性的免疫原,通过亲和层析,从兔抗血清中亲和纯化抗体。

商品属性

产品形式 液体溶液
浓度 1 mg/ml
储存缓冲液 含有50%甘油,0.5%BSA和0.02%叠氮化钠的PBS缓冲液。
保存建议 自发货之日起,-20°C可稳定保存1年。为最大限度的避免损失,请在打开管盖之前融化抗体并离心。我们建议使用前分装以避免反复冻融。
运输条件 蓝冰运输
警告 本文列出的产品仅供研究使用,不适用于人类或临床诊断。我们产品所推荐应用,不是建议使用我们的产品去违反任何专利或许可证。对于使用本产品可能发生的专利侵权或其他违规行为,我们不承担任何责任。

附加信息

背景 HLA-DQB1 belongs to the HLA class II beta chain paralogs. This 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). The beta chain is approximately 26-28 kDa and it contains six exons. Exon 1 encodes the leader peptide, exons 2 and 3 encode the two extracellular domains, exon 4 encodes the transmembrane domain and exon 5 encodes the cytoplasmic tail. Within the DQ molecule both the alpha chain and the beta chain contain the polymorphisms specifying the peptide binding specificities, resulting in up to four different molecules. Typing for these polymorphisms is routinely done for bone marrow transplantation. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2011]HLA-DQB1 (Major Histocompatibility Complex, Class II, DQ Beta 1) is a Protein Coding gene. Diseases associated with HLA-DQB1 include celiac disease and multiple sclerosis, disease progression, modifier of. Among its related pathways are Immune System and Interferon gamma signaling. Gene Ontology (GO) annotations related to this gene include peptide antigen binding and MHC class II receptor activity. An important paralog of this gene is HLA-DMA. 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.
基因ID 100507714
别名 HLA-DQB1; HLA-DQB; HLA class II histocompatibility antigen, DQ beta 1 chain; MHC class II antigen DQB1; HLA-DQB2; HLA-DXB; HLA class II histocompatibility antigen, DQ beta 2 chainHLA class II histocompatibility antigen, DX beta chain; MHC class II antigen DQB2
其它 该抗体可检测内源蛋白
蛋白质ID P01920/P05538

图片及说明

Fig.1. Western Blot analysis of PC12 cells using HLA-DQB1/2 Polyclonal Antibody. Secondary antibody (catalog#: A21020) was diluted at 1:20000.

Fig.1. Western Blot analysis of PC12 cells using HLA-DQB1/2 Polyclonal Antibody. Secondary antibody (catalog#: A21020) was diluted at 1:20000.

Fig.2. Immunohistochemical analysis of paraffin-embedded human-colon, antibody was diluted at 1:100.

Fig.2. Immunohistochemical analysis of paraffin-embedded human-colon, antibody was diluted at 1:100.

Fig.3. Immunohistochemical analysis of paraffin-embedded human-colon, antibody was diluted at 1:100.

Fig.3. Immunohistochemical analysis of paraffin-embedded human-colon, antibody was diluted at 1:100.

Fig.4. Immunohistochemical analysis of paraffin-embedded human-spleen, antibody was diluted at 1:100.

Fig.4. Immunohistochemical analysis of paraffin-embedded human-spleen, antibody was diluted at 1:100.

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