Anti-HLA-DRB5 Polyclonal Antibody-上海极威生物商城-Elisa试剂盒,白介素ELISA试剂盒,酶联免疫试剂盒,Gibco胎牛血清,Hyclone胎牛血清,胎牛血清等实验耗材一站式采购平台

热门关键词：白介素 gibco ELISA试剂盒胎牛血清移液器 ※本公司产品仅供科研实验研究使用，不用于临床诊断 !

产品简介

宿主	Rabbit
稀释比例	WB 1:1000-3000. IHC 1:50-200.
Gene ID	3127
保存	Store at -20°C. Avoid freeze / thaw cycles.
Swiss Prot	Q30154
蛋白分子量	30kDa
储存液	Buffer: PBS with 0.03% Proclin300, 50% glycerol, pH7.3.
亚细胞定位	Cytoplasm Cell membrane
免疫原	A synthetic peptide of human HLA-DRB5
亚型	IgG
纯化方法	Affinity purification
Important Note	Important Note
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.
Public Immunogen Range	40-90/266aa
克隆类型	Polyclonal Antibody
交叉反应	Human
应用	WBIHC
规格	50ul100ul