{"product_id":"id688-human-interleukin-4-il-4-elisa-kit","title":"Human Interleukin-4 (IL-4) ELISA Kit","description":"\u003cp\u003e This Human Interleukin-4 (IL-4) Sandwich ELISA Kit from Innovative Research is intended for quantitative detection of human IL-4 in cell culture supernates, cell lysates, serum and plasma (heparin, EDTA). Strip well format. Reagents for up to 96 tests. \u003c\/p\u003e\n\u003cp\u003eThis human IL-4 Sandwich ELISA Kit was based on standard sandwich enzyme-linked immune-sorbent assay technology. A monoclonal antibody from mouse specific for IL-4 has been precoated onto 96-well plates. Standards(E.coli, H25-S153) and test samples are added to the wells, a biotinylated detection polyclonal antibody from goat specific for IL-4 is added subsequently and then followed by washing with PBS or TBS buffer. Avidin-Biotin-Peroxidase Complex was added and unbound conjugates were washed away with PBS or TBS buffer. HRP substrate TMB was used to visualize HRP enzymatic reaction. TMB was catalyzed by HRP to produce a blue color product that changed into yellow after adding acidic stop solution. The density of yellow is proportional to the human IL-4 amount of sample captured in plate.\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eDetection Target: \u003c\/b\u003eInterleukin-4 (IL-4) \u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUniprot ID: \u003c\/b\u003e\u003ca href=\"https:\/\/www.uniprot.org\/uniprot\/P05112\" target=\"_blank\"\u003eP05112\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eReactivity: \u003c\/b\u003eHuman\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCross-Reactivity: \u003c\/b\u003eThere is no detectable cross-reactivity with other relevant proteins.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRange: \u003c\/b\u003e15.6pg\/ml-1000pg\/ml\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSensitivity: \u003c\/b\u003e\u0026lt;1.5pg\/ml\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStorage Conditions: \u003c\/b\u003eStore at 4?C for 6 months, at -20?C for 12 months. Avoid multiple freeze-thaw cycles. (Shipped with wet ice)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAdditional Information:\u003c\/strong\u003e\u003c\/p\u003e The capture antibody is a monoclonal antibody from mouse, the detection antibody is a biotinylated polyclonal antibody from goat. Expression system for standard: Interleukin-4(IL-4), also knowns as a B-cell stimulatory factor1(BSF1), is an immunomodulatory cytokine, which can inhibit the growth of tumour cells.The human cDNA contains a single open reading frame encoding a protein of 153 amino acids, including a putative signal peptide. IL-4 may act as an autocrine growth factor in pancreatic cancer cells and also give rise to the possibility that cancer-derived IL-4 may suppress cancer-directed immunosurveillance in vivo in addition to its growth-promoting effects, thereby facilitating pancreatic tumor growth and metastasis. The mouse and human genes and their protein products show structural and functional similarities. The human IL-4 gene, which occurs as a single copy in the haploid genome, is mapped on chromosome 5. The standard product used in this kit is recombinant human IL-4, consisting of 130 amino acids with the molecular mass of 14KDa.; Immunogen sequence: 250 \u003cbr\u003e\u003ca href=\"https:\/\/youtu.be\/J7fuMk6JfyI?si=cvhwIRlxjJlTCI3m\"\u003eClick here\u003c\/a\u003e to view a video tutorial covering frequently asked questions regarding ELISA workflows.","brand":"Innovative Research","offers":[{"title":"Default Title","offer_id":31543558635600,"sku":"IHUIL4KT","price":744.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0050\/2297\/4065\/files\/8044494f-a574-4da9-a905-b780d80c69bf_dc02fbd9-26a8-4d2e-9561-86c86beb0fd8.jpg?v=1739977405","url":"https:\/\/www.innov-research.com\/products\/id688-human-interleukin-4-il-4-elisa-kit","provider":"Innovative Research","version":"1.0","type":"link"}