Human IL-33 Protein, His Tag (HPLC verified)
分子别名(Synonym)
IL33, DV27, C9ORF26, IL1F11, NFHEV, DKFZp586H0523, DVS27, NFEHEV, RP11-575C20.2
表达区间及表达系统(Source)
Human IL-33 Protein, His Tag (IL3-H52H7) is expressed from human 293 cells (HEK293). It contains AA His 109 - Thr 270 (Accession # O95760-1).
Predicted N-terminus: His
蛋白结构(Molecular Characterization)

This protein carries a polyhistidine tag at the N-terminus.
The protein has a calculated MW of 20.2 kDa. The protein migrates as 25-30 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.
内毒素(Endotoxin)
Less than 0.1 EU per μg by the LAL method / rFC method.
无菌(Sterility)
Negative
支原体(Mycoplasma)
Negative
纯度(Purity)
>95% as determined by SDS-PAGE.
制剂(Formulation)
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.
Contact us for customized product form or formulation.
重构方法(Reconstitution)
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
存储(Storage)
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
-20°C to -70°C for 12 months in lyophilized state;
-70°C for 3 months under sterile conditions after reconstitution.


背景介绍
白细胞介素33 (Interleukin 33, IL-33),也称为 C9orf26、DKFZp586H0523、DVS27、核因子高内皮静脉表达 (NF-HEV)、NFEHEV、RP11-575C20.2,是白细胞介素1超家族 (IL-1 superfamily) 中的一种细胞因子。
IL-33 能够诱导辅助性T细胞 (helper T cells)、肥大细胞 (mast cells)、嗜酸性粒细胞 (eosinophils) 和嗜碱性粒细胞 (basophils) 产生 2型细胞因子 (type 2 cytokines)。
IL-33 通过与受体 ST2 (又名 IL1RL1) 和 白细胞介素1受体辅助蛋白 (IL-1 Receptor Accessory Protein, IL1RAP) 相互作用来介导其生物学效应。这种相互作用激活 NF-κB 和 MAP 激酶 (MAP kinase) 信号通路中的胞内分子,进而驱动极化 Th2 细胞 (polarized Th2 cells) 产生 2型细胞因子(例如 IL-5 和 IL-13)。
在体内,IL-33 可诱导 IL-4、IL-5 和 IL-13 的表达,并导致黏膜器官 (mucosal organs) 发生严重的病理改变 (severe pathological changes)。
关键字: IL-33;IL-33蛋白;IL-33重组蛋白;ACRO;百普赛斯;
百普赛斯集团ACROBiosystems Group(股票代码:301080)是成立于2010年的跨国生物科技公司,是为全球生物医药、健康产业领域提供关键生物试剂产品及解决方案的行业平台型基石企业。2021年在创业板上市。百普赛斯集团业务遍布全球,横跨亚洲、北美洲、欧洲,在中国、美国、瑞士等12个城市设有办公室、研发中心及生产基地。目前累计服务客户超6000家,与全球Top 20医药企业均建立了长期、稳定的合作伙伴关系。集团旗下拥有品牌ACROBiosystems百普赛斯、bioSeedin柏思荟、Condense Capital垦拓资本和ACRODiagnostics百斯医学等。