Rat leukocyte antigen-DR (HLA-DR) ELISA Kit | HLA-DR elisa kit

Rat leukocyte antigen-DR, HLA-DR ELISA Kit

Cat. Num. AAA9338270

• Gene Names: HLA-DQB1; IDDM1; CELIAC1; HLA-DQB
• Reactivity: Rat
• Synonyms: leukocyte antigen-DR (HLA-DR); Rat leukocyte antigen-DR; HLA-DR ELISA Kit; Rat leukocyte antigen-DR (HLA-DR) ELISA kit; HLA-DR elisa kit

• Reactivity: Rat
• Specificity: No significant cross-reactivity or interference between Rat LA-DR and analogues was observed.

• Samples: Serum, Plasma, Tissue Homogenate, Feces and Urine
• Assay Type: Sandwich
• Detection Range: 0.25 ng/ml - 8 ng/ml.
• Sensitivity: 0.1 ng/ml.
• Intended Uses: This Quantitative Sandwich ELISA kit is only for in vitro research use only, not for drug, household, therapeutic applications! It is intended to be determinated LA-DR concentrations in Rat serum, plasma and other body fluids. Using Purified Rat LA-DR antibody to coat Microelisa Stripplate wells to make solid-phase antibody, then add LA-DR and LA-DR antibody which has been labeled with HRP to wells, then the reactants become antibody-antigen-antibody-enzyme complex, after washing completely, add TMB substrate solution, TMB substrate becomes blue color under HRP enzyme-catalyzed, reaction is terminated by the addition of a sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450 nm. The concentration of LA-DR in the samples is then determined by comparing the O.D. of the samples to the standard curve.
• Intra-assay Precision: Intra-assay CV (%) is less than 15%.
• Inter-assay Precision: Inter-assay CV (%) is less than 15%. [CV(%) = SD/mean ×100]
• Preparation and Storage: Store all reagents at 2-8 degree C

Related Product Information for HLA-DR elisa kit

Background: This Quantitative Sandwich ELISA kit is only for in vitro research use only! It is intended to be determinated LA-DR concentrations in Rat serum, plasma and other body fluids. Using Purified Rat LA-DR antibody to coat Microelisa Stripplate wells to make solid-phase antibody, then add LA-DR and LA-DR antibody which has been labeled with HRP to wells, then the reactants become antibody-antigen-antibody-enzyme complex, after washing completely, add TMB substrate solution, TMB substrate becomes blue color under HRP enzyme-catalyzed, reaction is terminated by the addition of a sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450 nm. The concentration of LA-DR in the samples is then determined by comparing the O.D. of the samples to the standard curve.

NCBI and Uniprot Product Information

• NCBI GI #: 642238
• NCBI GeneID: 3119
• UniProt Accession #: Q29900; P01920
• Molecular Weight: 5,068 Da
• NCBI Official Full Name: HLA-DR, partial
• NCBI Official Synonym Full Names: major histocompatibility complex, class II, DQ beta 1
• NCBI Official Symbol: HLA-DQB1
• NCBI Official Synonym Symbols: IDDM1; CELIAC1; HLA-DQB
• NCBI Protein Information: HLA class II histocompatibility antigen, DQ beta 1 chain; MHC DQ beta; MHC class2 antigen; lymphocyte antigen; MHC class II antigen DQB1; MHC class II DQ beta chain; MHC class II antigen HLA-DQ-beta-1; MHC class II HLA-DQ beta glycoprotein
• UniProt Protein Name: HLA-DR
• UniProt Entry Name: Q29900_HUMAN

NCBI Description

HLA-DQB1 belongs to the HLA class II beta chain paralogs. This class II molecule is a heterodimer consisting of an alpha (DQA) and a beta chain (DQB), both anchored in the membrane. It plays a central role in the immune system by presenting peptides derived from extracellular proteins. Class II molecules are expressed in antigen presenting cells (APC: B lymphocytes, dendritic cells, macrophages). The beta chain is approximately 26-28 kDa and it contains six exons. Exon 1 encodes the leader peptide, exons 2 and 3 encode the two extracellular domains, exon 4 encodes the transmembrane domain and exon 5 encodes the cytoplasmic tail. Within the DQ molecule both the alpha chain and the beta chain contain the polymorphisms specifying the peptide binding specificities, resulting in up to four different molecules. Typing for these polymorphisms is routinely done for bone marrow transplantation. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2011]

Uniprot Description

HLA-DQB1: 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 miroenvironment has been implicated in the regulation of antigen loading into MHC II molecules, increased acidification produces increased proteolysis and efficient peptide loading. Belongs to the MHC class II family.

Protein type: Membrane protein, integral

Chromosomal Location of Human Ortholog: 6p21.3

Cellular Component: Golgi membrane; membrane; lysosomal membrane; plasma membrane; trans-Golgi network membrane; endosome membrane; MHC class II protein complex

Molecular Function: MHC class II receptor activity; peptide antigen binding

Biological Process: humoral immune response mediated by circulating immunoglobulin; cytokine and chemokine mediated signaling pathway; T cell costimulation; antigen processing and presentation of exogenous peptide antigen via MHC class II; immune response; immunoglobulin production during immune response; T cell receptor signaling pathway

Disease: Celiac Disease; Creutzfeldt-jakob Disease; Multiple Sclerosis, Susceptibility To