Biotinylated Human IGF-I R / IGF-1 R Protein, His,Avitag™
分子别名(Synonym)
IGF-I R / IGF-1 R
表达区间及表达系统(Source)
Biotinylated Human IGF-I R, His,Avitag (IGR-H82E3) is expressed from human 293 cells (HEK293). It contains AA Glu 31 - Asn 932 (Accession # P08069-1).
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 106.6 kDa. The protein migrates as 40-55 kDa,60 kDa and 95-150 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.
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)
After reconstitution, this product is stable after storage 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受体(IGF1R)亦称为CD221或JTK13,是一种跨膜受体,可被IGF-1及相关生长因子IGF-2激活。该受体属于酪氨酸激酶受体大家族,能介导IGF-1的生理效应——这种多肽蛋白激素在分子结构上与胰岛素相似。
IGF1R由两个α亚基和两个β亚基构成,且α、β亚基均源自同一mRNA前体的翻译合成。该前体经过糖基化修饰、蛋白酶水解切割并通过二硫键交联,最终形成具有功能的跨膜αβ链。其中α亚基位于
胞外,β亚基则跨膜分布,负责在配体刺激下启动细胞内信号转导。
IGF1R具有ATP结合位点,为自磷酸化过程提供磷酸基团。该受体与胰岛素受体存在60%的同源性。当配体结合后,α链会诱导β链发生酪氨酸自磷酸化,进而启动细胞内信号级联反应。虽然具体通路因细胞类型存在差异,但通常最终会促进细胞存活与增殖。
关键字: IGF-I R;IGF-I R蛋白;IGF-I R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。