{"product_id":"abcam-ab229396","title":"Abcam, ab229396, Human IgA ELISA Kit, Fluorescent","description":"\u003cp\u003eSize: 1 x 96Tests\u003cbr\u003e\nHuman IgA ELISA Kit, Fluorescent is a single-wash 90-min Simplestep used to quantify Human IgA with a sensitivity of 0.12 ng\/mL. The assay uses a simple mix-wash-read protocol with just one incubation and one wash step. - Fluorescent Sandwich ELISA - 530\/570\/590 nm readout : works on any standard plate reader\u003cbr\u003e\nKey facts\u003cbr\u003e\nDetection method:Fluorescent,\u003cbr\u003e\nSample types:Saliva, Urine, Heparin Plasma, Citrate plasma, Cell culture supernatant, Milk, Serum, EDTA Plasma,\u003cbr\u003e\nReacts with:Human,\u003cbr\u003e\nAssay type:Sandwich (quantitative),\u003cbr\u003e\nSensitivity:= 0.12 ng\/mL,\u003cbr\u003e\nRange:0.2 - 100 ng\/mL,\u003cbr\u003e\nAssay time:1h 30m,\u003cbr\u003e\nAssay Platform:Pre-coated microplate (12 x 8 well strips)\u003c\/p\u003e\n\n\u003cp\u003eProduct details:\u003cbr\u003e\nin vitro\u003cbr\u003e\nCatchPoint SimpleStep ELISA (Enzyme-Linked Immunosorbent Assay) kit is designed for the quantitative measurement of IgA protein in humanserum, plasma, milk, saliva, urine, and cell culture supernatants.\u003cbr\u003e\nThis CatchPoint SimpleStep ELISA kit has been\u003cbr\u003e\noptimized for Molecular Devices Microplate Readers\u003cbr\u003e\n. Click\u003cbr\u003e\nfor a list of recommended Microplate Readers.\u003cbr\u003e\nIf using a Molecular Devices' plate reader supported by SoftMax® Pro software, a preconfigured protocol for these CatchPoint SimpleStep ELISA Kits is available with all the protocol and analysis settings at\u003cbr\u003e\nwww.softmaxpro.org\u003cbr\u003e\nThe CatchPoint SimpleStep ELISA employs an affinity tag labeled capture antibody and a reporter conjugated detector antibody which immunocapture the sample analyte in solution. This entire complex (capture antibody\/analyte\/detector antibody) is in turn immobilized via immunoaffinity of an anti-tag antibody coating the well. To perform the assay, samples or standards are added to the wells, followed by the antibody mix. After incubation, the wells are washed to remove unbound material. CatchPoint HRP Development Solution containing the Stoplight Red Substrate is added. During incubation, the substrate is catalyzed by HRP generating a fluorescent product. Signal is generated proportionally to the amount of bound analyte and the intensity is measured in a fluorescence plater reader at 530\/570\/590 nm Excitation\/Cutoff\/Emission.\u003cbr\u003e\nHuman Immunoglobulin A (IgA) belongs to the immunoglobulin family of proteins which include Human IgG, IgE, and IgM, and are known as antibodies. IgA has an essential role in mucosal immunity. IgA is the second most common serum Ig at about one-fifth of the concentration of IgG, however it is the most abundant immunoglobulin in secretions, such as saliva, mucus, sweat, and tears. In normal human serum IgA is found mainly as a monomer, whereas in secretions IgA is found as a dimer. IgA dimeric form contains two additional proteins, secretory piece and a J chain. The secretory piece is synthesized in the epithelial cells and is added to IgA as it passes into the secretions, protecting it from degradation. Secretory IgA fights off bacteria by neutralizing the bacteria to clear the infection.\u003cbr\u003e\nThe most common disease associated with high levels of IgA in the kidney is IgA nephropathy, also known as Berger's disease. There is no clear clarification as to why IgA deposits occur in the kidney, however abnormality in the immune system is a possibility. Other diseases that IgA is associated with are Rheumatoid Arthritis, Crohn's Disease, Celiac disease and Henoch-Schonlein purpura (HSP).\u003c\/p\u003e\n\n\u003cp\u003eProperties and Storage Information:\u003cbr\u003e\nShipped at conditions-Blue Ice, Appropriate short-term storage conditions-+4°C, Appropriate long-term storage conditions-+4°C, Storage information-+4°C\u003c\/p\u003e\n\n\u003cp\u003eSupplementary Information:\u003cbr\u003e\nThis supplementary information is collated from multiple sources and compiled automatically.\u003cbr\u003e\nImmunoglobulin A (IgA) also known as sIgA in its secretory form is an important component of the immune system. With a molecular weight of approximately 160 kDa IgA exists as a monomeric or dimeric structure. It is primarily expressed in mucosal areas such as the respiratory tract gastrointestinal tract and urogenital tract while also being present in secretions like saliva tears and breast milk. In its dimeric form IgA associates with a joining (J) chain and a secretory component which facilitates its transport across mucosal barriers.\u003cbr\u003e\nBiological function summary\u003cbr\u003e\nIgA functions as a first line of defense in immune responses occurring at mucosal surfaces. Its primary role is to neutralize pathogens toxins and prevent their attachment and penetration through epithelial cells. This antibody does not form part of a larger complex but plays an important role in immune exclusion by trapping antigens in the mucus layer. Additionally IgA can mediate antibody-dependent cellular cytotoxicity and engage with specific receptors like FcαRI (CD89) on immune cells further enhancing its protective capabilities.\u003cbr\u003e\nPathways\u003cbr\u003e\nIgA participates in the mucosal immune response which is a sub-component of the broader immune system pathways. It is closely associated with the polymeric immunoglobulin receptor (pIgR) which transports IgA to the mucosal surfaces. The pathway involves recombination activation proteins (RAG) during its class-switching process in B cells differentiating from IgM-producing cells to those secreting IgA. These pathways are integral to maintaining the mucosal environment and protecting against pathogens.\u003cbr\u003e\nAlterations or deficiencies in IgA can lead to increased susceptibility to infections and disorders like IgA nephropathy and celiac disease. In IgA nephropathy IgA deposits in the kidneys result in inflammation and damage to renal tissues. Celiac disease involves an immune reaction to gluten where IgA antibodies against tissue transglutaminase (tTG) contribute to intestinal damage. Both conditions illustrate the importance of IgA in maintaining immune balance and its connection with disease pathologies.\u003c\/p\u003e","brand":"Abcam","offers":[{"title":"Default Title","offer_id":46843581989033,"sku":"ab229396","price":0.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/iright.com\/ar\/products\/abcam-ab229396","provider":"Iright","version":"1.0","type":"link"}