Human IGF-I Protein, His Tag (SPR verified)
分子别名(Synonym)
IGF-I,IGF1A,somatomedin C,MGF
表达区间及表达系统(Source)
Human IGF-I Protein, His Tag (IG1-H5245) is expressed from human 293 cells (HEK293). It contains AA Gly 49 - Ala 118 (Accession # P05019-1).
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 9.5 kDa. The protein migrates as 12 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)
>90% 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
胰岛素样生长因子1(IGF-1)亦称生长调节素C、IGF1A、IGFI或硫酸化因子,是一种分子结构与胰岛素相似的激素。它在儿童生长发育中起重要作用,并在成人阶段持续发挥合成代谢效应。其合成类似物美卡舍明可用于治疗生长障碍。IGF-1由70个氨基酸组成单链结构,包含三个分子内二硫键,分子量为7649道尔顿。
IGF-1主要通过肝脏以内分泌激素形式产生,同时也能以旁分泌/自分泌方式在靶组织中合成。该因子可与至少两种细胞表面受体结合:胰岛素样生长因子1受体(简称IGF1R)和胰岛素受体。其中IGF-1受体被视为"生理性"受体——其与IGF-1的结合亲和力显著高于胰岛素受体。与胰岛素受体类似,IGF-1受体属于受体酪氨酸激酶,通过催化特定酪氨酸残基的磷酸化进行信号传导。
IGF-1的主要生物学功能通过与其特异性受体IGF1R结合实现,该受体广泛存在于多种组织细胞表面。与IGF1R结合后可启动细胞内信号转导:IGF-1是AKT信号通路最强的天然激活剂之一,能有效刺激细胞生长增殖,并强力抑制程序性细胞死亡。研究证实胰岛素样生长因子1能与所有六种IGF-1结合蛋白(IGFBP1-6)发生相互作用,其中与IGFBP3、IGFBP4及IGFBP7的结合已有具体文献支持。
关键字: IGF-I;IGF-I蛋白;IGF-I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。