{"product_id":"human-il-4-elisa-kit-bhe19600086","title":"Human IL-4 ELISA Kit","description":"\u003cstyle\u003e.bhp-desc{font-size:16px;color:#1a1a1a;line-height:1.7}.bhp-desc h2{font-size:18px;font-weight:700;color:#003366;margin:24px 0 10px;padding-bottom:6px;border-bottom:2px solid #003366}.bhp-desc p{margin:0 0 12px}.bhp-desc .bhp-spec-table{width:100%;border-collapse:collapse;margin:12px 0 18px}.bhp-desc .bhp-spec-table th{width:36%;text-align:left;padding:8px 12px;background:#e8f0fb;color:#003366;font-weight:600;vertical-align:top;border:1px solid #ccd9f0}.bhp-desc .bhp-spec-table td{padding:8px 12px;vertical-align:top;border:1px solid #ccd9f0}.bhp-desc .bhp-qc-badge{display:inline-block;background:#e6f4ea;color:#1a7a3c;border:1px solid #a8d5b5;border-radius:4px;padding:6px 14px;font-size:14px;font-weight:600}.bhp-desc .bhp-warning-box{background:#fff8e6;border-left:4px solid #e6a817;padding:10px 14px;margin:10px 0 14px;border-radius:0 4px 4px 0}.bhp-desc .bhp-cat-pill{display:inline-block;background:#003366;color:#fff;border-radius:20px;padding:3px 12px;font-size:13px;margin-bottom:10px}\u003c\/style\u003e\u003cdiv class=\"bhp-desc\"\u003e\n\u003cspan class=\"bhp-cat-pill\"\u003eELISA Kit\u003c\/span\u003e\u003cp\u003eInterleukin-4 (IL4), is a secreted protein that belongs to the IL-4 \/ IL-13 family. IL-4 enhances both secretion and cell surface expression of IgE and IgG1. It regulates the expression of the low-affinity Fc receptor for IgE (CD23) on both lymphocytes and monocytes. IL-4 is essential for the switching of B cells to IgE antibody production and for the maturation of T helper (Th) cells toward the Th2 phenotype. It participates in at least several B-cell activation processes.\u003c\/p\u003e\n\u003ch2\u003eAssay Principle\u003c\/h2\u003e\n\u003cp\u003eThe Fast Human IL-4 ELISA is a solid phase ELISA designed to measure human IL-4 levels in cell culture supernatants, serum, and plasma.\u003c\/p\u003e\n\u003cp\u003eKey Features Novel Proprietary ELISA Approach\u003c\/p\u003e\n\u003cp\u003eSimple: Sample and Detection combined into one step.\u003c\/p\u003e\n\u003cp\u003eHuman IL-4 ELISA Kit is a Solid-phase sandwich ELISA for the quantitative determination of IL-4. The microplate is pre-coated with a capture antibody specific to the target. Target present in the sample or standard binds the immobilized antibody, is detected with a biotinylated detection antibody and streptavidin-HRP, and quantified colorimetrically against a standard curve.\u003c\/p\u003e\n\u003ch2\u003eKit Components\u003c\/h2\u003e\n\u003cp\u003eThe kit provides a pre-coated microplate, target standard for standard-curve generation, detection reagents (detection antibody and enzyme conjugate), wash buffer, substrate, and stop solution. Refer to the product datasheet for the complete component list and quantities.\u003c\/p\u003e\n\u003ch2\u003ePerformance Data\u003c\/h2\u003e\n\u003ctable class=\"bhp-spec-table\"\u003e\n\u003ctr\u003e\n\u003cth\u003eTarget\u003c\/th\u003e\n\u003ctd\u003eIL-4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecies\u003c\/th\u003e\n\u003ctd\u003eHuman\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSample Type\u003c\/th\u003e\n\u003ctd\u003ecell culture supernatant, serum, plasma\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAssay Type\u003c\/th\u003e\n\u003ctd\u003eSandwich\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTest Principle\u003c\/th\u003e\n\u003ctd\u003eSolid-phase sandwich ELISA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSensitivity\u003c\/th\u003e\n\u003ctd\u003e8.0 pg\/mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAssay Time\u003c\/th\u003e\n\u003ctd\u003e1 hour\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecificity\u003c\/th\u003e\n\u003ctd\u003eThis assay recognizes natural and recombinant human IL-4.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStorage\u003c\/th\u003e\n\u003ctd\u003eStore the unopened kit at 2-8°C. | Components: The unused wells can be stored in the sealed foil pouch containing the desiccant pack for up to 1 month at 2-8°C.; Aliquot and store at -20°C for up to 1 month in a manual defrost freezer. Avoid repeated freeze-thaw cycles.; May be stored for up to 3 months at 2-8°C.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan class=\"bhp-qc-badge\"\u003e✓ Quality tested for reproducibility and lot-to-lot consistency\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eSafety \u0026amp; Handling\u003c\/h2\u003e\n\u003cdiv class=\"bhp-warning-box\"\u003eFor Research Use Only (RUO). Not for use in diagnostic or therapeutic procedures. Follow standard laboratory safety practices and consult the SDS before handling.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Tribioscience","offers":[{"title":"1 x 96-well plate","offer_id":53547751080301,"sku":"TBS3221","price":420.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/TBS3221_IL4.jpg?v=1783980664","url":"https:\/\/www.ebiohippo.com\/products\/human-il-4-elisa-kit-bhe19600086","provider":"BioHippo","version":"1.0","type":"link"}