Human IL-15 Protein (HEK293), premium grade
分子别名(Synonym)
IL-15,Interleukin-15,MGC9721
表达区间及表达系统(Source)
Human IL-15, premium grade (IL5-H5215) is expressed from human 293 cells (HEK293). It contains AA Asn 49 - Ser 162 (Accession # P40933-1).
Predicted N-terminus: Asn 49
蛋白结构(Molecular Characterization)

This protein carries no "tag".
The protein has a calculated MW of 12.8 kDa. The protein migrates as 14-16 kDa under reducing (R) condition, and 14 kDa under non-reducing (NR) condition (SDS-PAGE) due to glycosylation.
内毒素(Endotoxin)
Less than 0.01 EU per μg by the LAL method / rFC method.
宿主蛋白残留(Host Cell Protein)
<0.5 ng/µg of protein tested by ELISA.
宿主核酸残留(Host Cell DNA)
<0.02 ng/μg of protein tested by qPCR.
无菌(Sterility)
Negative
支原体(Mycoplasma)
Negative.
纯度(Purity)
>95% as determined by SDS-PAGE.
>90% 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15(Interleukin 15,简称IL-15或IL15)是一种在结构上与IL-2相似的细胞因子。与IL-2类似,IL-15通过结合IL-2/IL-15β链(CD122)和共同γ链(γc/CD132)传递信号。该细胞因子由单核吞噬细胞(及其他某些细胞)在病毒感染后分泌,能够诱导自然杀伤细胞(先天免疫系统的核心效应细胞,主要功能是清除病毒感染的细胞)增殖。
IL-15通过调节T细胞和自然杀伤(NK)细胞的活化与增殖,在免疫应答中发挥关键作用。该细胞因子能在无抗原刺激的情况下为记忆T细胞提供存活信号,并参与NK细胞的发育过程。在啮齿类动物淋巴细胞中,IL-15通过诱导凋亡抑制剂BCL2L1/BCL-x(L)的表达来阻止细胞凋亡。临床前研究表明,IL-15能增强CD8+ T细胞的抗肿瘤免疫力。目前美国国立卫生研究院已启动I期临床试验,旨在评估IL-15用于治疗转移性黑色素瘤和肾细胞癌患者的安全性、给药方案及抗肿瘤疗效,并已开始招募受试者。
关键字: IL-15;IL-15蛋白;IL-15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。