Anti-HLA-DQB2 Polyclonal Antibody,BR

产品属性 Product Attributes

基本信息

英文名称： Anti-HLA-DQB2 Polyclonal Antibody
中文名称： Ⅱ类主要组织相容性复合体DQβ2抗体
规格： 50ul ; 100ul
宿主： Rabbit
克隆类型： Polyclonal Antibody
亚型： IgG
交叉反应：： Human ; Mouse
应用： WB
稀释比例： WB 1:1000-3000.

抗体信息

靶标： HLA-DQB2
别名： HLA-DQB2,HLA-DXB,HLA class II histocompatibility antigen,DQ beta 2 chain,HLA class II histocompatibility antigen,DX beta chain,MHC class II antigen DQB2
背景说明： 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.
Swiss Prot： P05538
Gene ID： 3120
亚细胞定位： Cytoplasm Cell membrane
免疫原： Recombinant protein of human HLA-DQB2
Public Immunogen Range： 1-231aa
理论分子量： 30/26kDa

其它标识

纯化方法： Affinity purification
储存液： PBS with 50% Glycerol，0.03% Proclin300，0.5% BSA，pH 7.3.
储存条件： Store at -20℃. Avoid freeze/thaw cycles.

产品介绍 Product Introduction

使用前请离心。如有问题请及时联系我们。
Quick spin before use. If you have any questions, please contact us.

注意事项 Considerations

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。