- 中文名称
HLA-DQA1 (N-term) 一抗
- 英文名字
- HLA-DQA1 (N-term) Primary antibody
- 供应商
- Promab
- 产品货号
- PMB-P33146
- 产品报价
- ￥询价/100ul
- 产品说明书
- 点击查看
- 购买方式
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- 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 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.
- 应用类型
- WB
- 免疫原
- This HLA-DQA1 antibody is generated from a rabbit immunized with a KLH conjugated synthetic peptide between 58-90 amino acids from the N-terminal region of human HLA-DQA1.
- 来源宿主
- Rabbit
- 反应性
- Human
- 保存建议
- 4℃短期保存；-20℃长期保存。避免冻融循环。
- 其他
- ProMab 生物技术公司通过整合生物信息学、分子生物学、蛋白质表达、纯化技术、基因克隆、微生物学和免疫学，利用新型高通量技术开发重组蛋白、抗体和工程细胞系并将其商业化。专注于免疫治疗领域，特别是 CAR-T/NK 细胞技术。ProMab 还开发了一种新型的 mRNA 脂质纳米颗粒（mRNA-LNP）平台，用于即用型试剂和定制研究服务，以推进现有产品并扩展到更多的研究领域。
- 注意
-
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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