HLA-DRB4 anticorps (AA 30-227) (FITC)

N° du produit ABIN7155611

Détail du produit anti-HLA-DRB4 anticorps (FITC)

Antigène: HLA-DRB4 (Major Histocompatibility Complex, Class II, DR beta 4 (HLA-DRB4))

Épitope: AA 30-227

Reactivité: Humain

Hôte: Lapin

Clonalité: Polyclonal

Conjugué: Cet anticorp HLA-DRB4 est conjugé à/à la FITC

Application: Veuillez nous consulter SVP

Réactivité croisée: Humain

Purification: >95%, Protein G purified

Immunogène: Recombinant Human HLA class II histocompatibility antigen, DR beta 4 chain protein (30-227AA)

Isotype: IgG

Information d'application

Restrictions: For Research Use only

Stockage

Format: Liquid

Buffer: Preservative: 0.03 % Proclin 300
Constituents: 50 % Glycerol, 0.01M PBS, PH 7.4

Agent conservateur: ProClin

Précaution d'utilisation: This product contains ProClin: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.

Stock: -20 °C,-80 °C

Stockage commentaire: Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.

Détails sur HLA-DRB4

Antigène: HLA-DRB4 (Major Histocompatibility Complex, Class II, DR beta 4 (HLA-DRB4))

Autre désignation: HLA-DRB4 (HLA-DRB4 Produits)

Synonymes: anticorps DR-4, anticorps DR4, anticorps DRB4, anticorps HLA-DR4B, anticorps major histocompatibility complex, class II, DR beta 4, anticorps HLA-DRB4

Sujet:

Background: 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.

Aliases: DR 4 antibody, DR beta 4 chain antibody, DR4 antibody, DRB1 transplantation antigen antibody, DRB4 antibody, DRB4_HUMAN antibody, HLA class II histocompatibility antigen antibody, HLA class II histocompatibility antigen DR beta 4 chain antibody, HLA-DRB4 antibody, Human leucocyte antigen DRB4 antibody, Leukocyte antigen antibody, Major histocompatibility complex class II DR beta 4 antibody, MHC class II antigen DRB4 antibody, MHC class II antigen HLA DR beta antibody, MHC class2 antigen antibody, MHC HLA DR-beta chain antibody

UniProt: P13762

Pathways: TCR Signaling, Positive Regulation of Peptide Hormone Secretion, Production of Molecular Mediator of Immune Response