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名称
Recombinant Human IL-2 GMP Protein
别名
重组人IL-2蛋白 | 重组人白介素2蛋白 | 重组人 IL-2 GMP 蛋白
英文别名
Interleukin 2 | Aldesleukin | IL2 | IL-2 | lymphokine | interleukin-2 | involved in regulation of T-cell clonal expansion | Proleukin | T cell growth factor | T-cell growth factor | TCGF
货号
rp166066-GMP-50μg
包装规格
50μg
级别
无动物源
浓度
≥97%(SDS-PAGE&SEC-HPLC)
生化机理
由活化的 CD4 阳性辅助 T 细胞产生的细胞因子,其次是活化的 CD8 阳性 T 细胞和自然杀伤(NK)细胞,在免疫反应和耐受中起着关键作用。与由高亲和力三聚体 IL-2R(IL2RA/CD25、IL2RB/CD122 和 IL2RG/CD132)或低亲和力二聚体 IL-2R(IL2RB 和 IL2RG)组成的受体复合物结合。与受体的相互作用会导致 IL-2R 亚基的寡聚化和构象变化,从而产生下游信号,首先是 JAK1 和 JAK3 的磷酸化。反过来,JAK1 和 JAK3 又使受体磷酸化,形成一个对接位点,导致包括 STAT5 在内的多个底物磷酸化。这一过程会激活多种途径,包括 STAT、磷酸肌醇-3-激酶/PI3K 和丝裂原活化蛋白激酶/MAPK 途径。作为一种 T 细胞生长因子,还能提高 NK 细胞的细胞溶解活性。促进活化 B 细胞的强烈增殖,进而促进免疫球蛋白的产生。通过控制维持免疫耐受所需的调节性 T 细胞的存活和增殖,在调节适应性免疫系统中发挥关键作用。此外,它还参与效应 T 细胞亚群(包括 Th1、Th2、Th17 以及记忆 CD8 阳性 T 细胞)的分化和稳态。
生物活性
Measured in a cell proliferation assay using CTLL‑2 mouse cytotoxic T cells. The ED50 for this effect is 0.0300-0.250 ng/mL. The specific activity of recombinant human IL-2 is >5.00 x 10^6 IU/mg, which is calibrated against the human IL-2 WHO International Standard (NIBSC code: 86/500).
来源
重组表达
预测分子量
15.5 kDa
蛋白标签
No tag
SDS-PAGE
13 kDa under reducing conditions.
表达系统
E. coli Accession #: P60568 | E. coli
内毒素水平
<0.01 EU/μg
种属
人(Human)
氨基酸
21-153 aa (C145S)
序列
MAPTSSSTKKTQLQLEHLLLDLQMILNGINNYKNPKLTRMLTFKFYMPKKATELKHLQCLEEELKPLEEVLNLAQSKNFHLRPRDLISNINVIVLELKGSETTFMCEYADETATIVEFLNRWITSCQSIISTLT
无动物源
Yes
无载体
Yes
N-末端序列
Met-Ala21-Pro-Thr-Ser-Ser-Ser-Thr-Lys-Lys & Ala21-Pro-Thr-Ser-Ser-Ser-Thr-Lys-Lys-Thr
Safety
「No Dangerous Attributes」
Related
「No upstream and downstream information yet」
Technical Documents
「No technical documents」
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「No related articles yet」
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Research chemical ≥97%; HPLC

Research chemical ≥97%; HPLC; supplied for laboratory research, analysis, inspection, and scientific procurement use; specifications: ≥97%; HPLC.

item number:rp166066-GMP-50μg
Product model:50μg
level: ≥97%; HPLC
Lead Time:30days
sold 376 Items
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50μg

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