{"product_id":"ept054","title":"Recombinant Human IL-33","description":"\u003cstrong\u003eDescription:\u003c\/strong\u003e Recombinant Human Interleukin-33 is produced by our E.coli expression system and the target gene encoding Ser112-Thr270 is expressed.\u003cbr\u003e\u003cstrong\u003eAccession:\u003c\/strong\u003e O95760\u003cbr\u003e\u003cstrong\u003eMolecular weight:\u003c\/strong\u003e 18.1 KDa\u003cbr\u003e\u003cstrong\u003eApparent molecular weight:\u003c\/strong\u003e 18 KDa, reducing conditions\u003cbr\u003e\u003cstrong\u003eOther names:\u003c\/strong\u003e Interleukin-33; IL-33; Interleukin-1 Family Member 11; IL-1F11; Nuclear Factor From High Endothelial Venules; NF-HEV; IL33; C9orf26; IL1F11; NFHEV\u003cbr\u003e\u003cstrong\u003eStorage condition:\u003c\/strong\u003e Lyophilized protein should be stored at \u0026lt; -20°C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 4-7°C for 2-7 days. Aliquots of reconstituted samples are stable at \u0026lt; -20°C for 3 months.\u003cbr\u003e\u003cstrong\u003ePurity:\u003c\/strong\u003e Greater than 95% as determined by reducing SDS-PAGE.\u003cbr\u003e\u003cstrong\u003eEndotoxin:\u003c\/strong\u003e Less than 0.001 ng\/µg (0.01 EU\/µg) as determined by LAL test.\u003cbr\u003e\u003cstrong\u003eBiological activity:\u003c\/strong\u003e Immobilized Mouse ST2-His(Cat#CK89) at 5μg\/ml (100 μl\/well) can bind Human IL-33(Cat#C091).The ED50 of Human IL-33(Cat#C091)  is 0.63 ug\/ml.\u003cbr\u003e\u003cstrong\u003eRedissolve:\u003c\/strong\u003e Always centrifuge tubes before opening.Do not mix by vortex or pipetting.\nIt is not recommended to reconstitute to a concentration less than 100μg\/ml.\nDissolve the lyophilized protein in distilled water.\nPlease aliquot the reconstituted solution to minimize freeze-thaw cycles. \u003cbr\u003e\u003cstrong\u003eStorage:\u003c\/strong\u003e Lyophilized protein should be stored at \u0026lt; -20°C, though stable at room temperature for 3 weeks.\nReconstituted protein solution can be stored at 4-7°C for 2-7 days.\nAliquots of reconstituted samples are stable at \u0026lt; -20°C for 3 months.\u003cbr\u003e\u003cstrong\u003eDelivery condition:\u003c\/strong\u003e The product is shipped at ambient temperature.\nUpon receipt, store it immediately at the temperature listed below.\u003cbr\u003e\u003cstrong\u003eBackground:\u003c\/strong\u003e Interleukin-33 (IL-33) was initially discovered as a nuclear factor NF-HEV abundantly expressed in high endothelial venules. It is a 30-32 kD pro-inflammatory protein with intracellular and extracellular activities and a chromatin-associated cytokine of the IL-1 family with high sequence and structural similarity to IL-1 and IL-18. IL-33 is highly and selectively expressed by high endothelial venule endothelial cells (HEVECs) in human tonsils, Peyers's patches, and lymph nodes. It contains a bipartite nuclear localization signal at the C-terminus, and is targeted to the nucleus when ectopically expressed in human umbilical vein endothelial cells (HUVECs) and HeLa cells. The C-terminal fragment, corresponding to mature IL-33, binds and triggers signaling. IL-33 mediates its biological effects via Toll-interleukin 1 (IL-1) receptor (TIR) domain-containing receptor ST2, activates NF-kappaB and MAP kinases, and drives production of T(H)2-associated cytokines from in vitro polarized T(H)2 cells. In vivo, IL-33 induces the expression of IL-4, IL-5, and IL-13 and leads to severe pathological changes in mucosal organs. Human IL-33 is 270 amino acids in length.","brand":"ELK Biotechnology","offers":[{"title":"10ug","offer_id":50413833519384,"sku":"EPT054","price":279.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0590\/5652\/1400\/files\/ELK_7462cd86-6697-445a-bd7b-290984df4908.jpg?v=1751163602","url":"https:\/\/danabiosci.com\/products\/ept054","provider":"Dana Bioscience","version":"1.0","type":"link"}