Biotinylated Human IL-1 beta / IL-1F2 Protein, His,Avitag™ (MALS verified)
分子别名(Synonym)
IL1B, IL-1BETA, IL1F2, IL-1β
表达区间及表达系统(Source)
Biotinylated Human IL-1 beta, His,Avitag (ILB-H82E9) is expressed from human 293 cells (HEK293). It contains AA Ala 117 - Ser 269 (Accession # P01584-1).
Predicted N-terminus: Ala 117
蛋白结构(Molecular Characterization)

This protein carries a polyhistidine tag at the C-terminus, followed by an Avi tag (Avitag™).
The protein has a calculated MW of 21.0 kDa. The protein migrates as 26-28 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.
标记(Labeling)
Biotinylation of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.
蛋白标记度(Protein Ratio)
Passed as determined by the HABA assay / binding ELISA.
纯度(Purity)
>90% as determined by SDS-PAGE.
>95% as determined by SEC-MALS.
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-1β(IL-1β)亦称分解素,是一种由IL1B基因编码的细胞因子蛋白。IL-1β前体经半胱天冬酶1(白细胞介素1β转化酶)剪切后,再通过胞质巯基蛋白酶裂解形成成熟IL-1β。
在结构上,IL1β属于相关多肽家族,人类中其氨基酸同源性约为21%。这两种蛋白可由多种细胞在炎症因子、感染或微生物内毒素刺激下产生。虽然IL1α与IL1β受独立调控,但它们结合相同受体并发挥相同的生物学效应。
IL-1β是白细胞介素1细胞因子家族成员,由活化巨噬细胞以前体蛋白形式分泌,经半胱天冬酶1(CASP1/ICE)蛋白水解激活。该细胞因子是炎症反应的重要介质,参与细胞增殖、分化和凋亡等多种细胞活动。研究发现,该细胞因子在中枢神经系统诱导环氧化酶-2(PTGS2/COX2)的表达,这一过程与炎症性痛觉过敏密切相关。IL1B基因与白介素1家族其他8个基因共同构成2号染色体上的细胞因子基因簇。
关键字: IL1B;IL1B蛋白;IL1B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。