- 中文名称
HLA Class II Histocompatibility Antigen, DQ Beta 1 Chain (HLA-DQB1) Antibody
- 英文名字
- HLA Class II Histocompatibility Antigen, DQ Beta 1 Chain (HLA-DQB1) Antibody
- 供应商
- Abbexa
- 产品货号
- abx034881
- 产品报价
- ￥询价/80ul ￥询价/400ul
- 产品说明书
- 点击查看
- 购买方式
- 银行转账、电汇、支票、现金，在线支付宝及网银支付，或直接与我们电话联系400-6800-868。
- 产品新闻
- 背景资料
- 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 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.
- 应用类型
- WB
- 免疫原
- HLA-DQB1
- 来源宿主
- 兔
- 反应性
- 人
- 保存建议
- 建议收到该HLA Class II Histocompatibility Antigen, DQ Beta 1 Chain (HLA-DQB1) Antibody产品后，储存温度为-20°C。避免重复冻融
- 其他
- Abbexa总部位于英国剑桥的剑桥科学园,是一家专业的全球抗体供应商和蛋白质供应商,致力于为生命科学、药物开发和生物技术领域的科学家和研究者提供最佳的客户体验和高质量的产品。产品涵盖一抗、二抗、蛋白质、ELISA试剂盒、酶以及其他用于研究的试剂盒和工具。无论您是进行学术研究,药物开发,疾病研究还是其它生物学研究,Abbexa的单克隆抗体,多克隆抗体,蛋白质和生物试剂均旨在促进您的研究。如果很难找到合适的抗体来满足您的需求,Abbexa还提供了定制蛋白质,肽和抗体的生产渠道。
- 注意
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该页面的中文产品信息的翻译，仅供参考。准确的产品信息请以厂家的英文说明书为准。下单前，请浏览说明书确认。
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