| 产品名称 | 
 Recombinant Human IL-33  | 
| 英文名称 | 
 IL-33/Interleukin-33/IL-1F11/Interleukin-1 Family Member 11/Nuclear Factor From High Endothelial Venules/NF-HEV/C9orf26/NFHEV  | 
| 纯度 | 
 Greater than 95% as determined by reducing SDS-PAGE  | 
| 内毒素 | 
 <0.01 EU/µg as determined by LAL test.  | 
| 蛋白构建 | 
 Recombinant Human Interleukin-33 is produced by our E.coli expression system and the target gene encoding Ser112-Thr270 is expressed.  | 
| Accession | 
 O95760  | 
| 表达宿主 | 
 E.coli  | 
| 种属 | 
 Human  | 
| 预测分子量 | 
 18.1 KDa  | 
| 制剂 | 
 Lyophilized from a 0.2 μm filtered solution of 20mM PB, 150mM NaCl, pH 7.4.  | 
| 运输方式 | 
 The product is shipped at ambient temperature.Upon receipt, store it immediately at the temperature listed below.  | 
| 稳定性&储存 | 
 Store at ≤-70°C, stable for 6 months after receipt.Store at ≤-70°C, stable for 3 months under sterile conditions after opening. Please minimize freeze-thaw cycles.  | 
| 复溶 | 
 Always centrifuge tubes before opening.Do not mix by vortex or pipetting.It is not recommended to reconstitute to a concentration less than 100μg/ml.Dissolve the lyophilized protein in distilled water.Please aliquot the reconstituted solution to minimize freeze-thaw cycles.  | 
| 分子别名 | 
| Interleukin-33; IL-33; Interleukin-1 Family Member 11; IL-1F11; Nuclear Factor From High Endothelial Venules; NF-HEV; IL33; C9orf26; IL1F11; NFHEV | 
| 背景介绍 | 
| 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, Peyerss 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. | 
注意事项
本司产品仅用于科研,不用于临床诊断和治疗