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- 详细信息
- 文献和实验
- 技术资料
- 保存条件:
-20℃ to -80℃
- 保质期:
12个月
- 英文名:
Recombinant Human IL-2Rβ & IL-2Rγ Protein (Flag & AVI & His Tag), Biotinylated
- 库存:
99
- 供应商:
北京义翘神州科技股份有限公司
- 规格:
20 µg/100 µg
| 规格: | 20 µg | 产品价格: | ¥3870.0 |
|---|---|---|---|
| 规格: | 100 µg | 产品价格: | ¥8940.0 |
蛋白名称:Human IL-2Rβ & IL-2Rγ Heterodimer Protein (Flag & AVI & His Tag), Biotinylated
蛋白构建:A DNA sequence encoding the Human IL2RB (P14784)(Ala27-Asp239) was fused with a flag tag at the C-terminus, constructed the plasmid 1; A DNA sequence encoding the Human IL2RG (P31785) (Leu23-Asn254) was expressed with a polyhistidine tag at the C-terminus, constructed the plasmid 2. The two plasmids were co-expressed and the IL2RB & IL2RG heterodimer was purified.
表达宿主:HEK293 Cells
蛋白纯度:≥ 90 % as determined by SDS-PAGE. ≥ 95 % as determined by SEC-HPLC. ≥ 95 % as determined by SEC-MALS(Routinely tested).
蛋白活性:1.Loaded Biotinylated Recombinant Human IL-2Rβ & IL-2Rγ Protein, Flag & AVI & His Tag (Cat. No. CT108-H2549H1-B) on SA Biosensor, can bind Recombinant Human IL-2 Protein (Cat. No. 11848-HNAE2) with an affinity constant of 2.190 nM as determined in BLI assay (Sartorius Octet RED384) (Routinely tested). 2.Loaded Biotinylated Recombinant Human IL-2Rβ & IL-2Rγ Protein, Flag & AVI & His Tag (Cat. No. CT108-H2549H1-B) on SA Biosensor, can bind Recombinant Human IL-2 Protein (Cat. No. 11848-HNAH1-E) with an affinity constant of 1.210 nM as determined in BLI assay (Sartorius Octet RED384) (QC tested).
蛋白内毒素:< 1.0 EU per μg protein as determined by the LAL method.
预测N端:Ala 27 & Leu 23
蛋白分子量:The recombinant heterodimer of human IL2RB & IL2RG comprises 616 (313+303) amino acids and has a calculated molecular mass of 68.34 (34.25+34.09) KDa. The apparent molecular mass of human IL2RB & IL2RG heterodimer is approximately 59 kDa and 45 kDa respectively in SDS-PAGE. The molecular weight of this protein is around 98.7 kDa verified by SEC-MALS(Routinely tested).
蛋白NP号:P14784 & P31785
蛋白氨基酸序列:Ala27-Asp239 & Leu23-Asn254
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文献和实验的培养及鉴定 2.1 将PBMC按1-2 x 106/ml的浓度悬浮于无血清培养液中,加入1,000 U/ml 的重组人IFN-g,37oC,5%CO2培养箱中培养; 2.2 24h 后加入50ng/ml 的CD3 单克隆抗体和300 U/ml 的重组人IL-2,刺激CIK 细胞的生长和增殖; 注:此时也可同时加入100 U/ml的重组人IL-1a。 2.3 每3天半量换液或扩瓶一次,并补加重组人IL-2 300 U/ml; 2.4 在培养的第14d,收获CIK细胞。
因子。以IL-2γ链异常为主要特征的X联锁严重免疫缺陷综合症患者显示出T细胞发育异常,T细胞的缺乏或数量明显减少,提示IL-2γ链在T细胞的发育中起至关重要的作用。IL-4、IL-7均在T细胞的发育中起作用,它们共用一条信号转导链IL-2Rγ链来传递T细胞增殖的信号。在IL-2受体系统中,α链构成低亲和力受体,中亲和力受体由β、γ链组成,高亲和力受体由α、β、γ三条链组成,其中,γ链相当于其它细胞因子受体的β链,参参与信号传递,而αβ链则相当于α链,主要发挥识别和结合配体的作用。 (二)共用链
x 106/ml; 3.4 加入1 000 U/ml 的重组人IFN-g培养; 3.5 24h 后加入50ng/ml 的CD3 单克隆抗体和300 U/ml 的重组人IL-2,刺激CIK 细胞的生长和增殖; 注:此时也可同时加入100 U/ml的重组人IL-1a。 3.6 每3天半量换液或扩瓶一次,并补加重组人IL-2 300 U/ml; 3.7 在培养的第7d,收获CIK细胞,此时数量应达到1x 109个以上。 3.8 CIK细胞质控: 3.8.1 台盼蓝染色检测
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