IL-7 Protein (AA 26-177)
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北京 101111
Quick Overview for IL-7 Protein (AA 26-177) (ABIN2667542)
抗原
See all IL-7 (IL7) 蛋白蛋白类型
生物活性
宿主
资源
应用范围
纯度
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产品特性
- AA 26-177
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内毒素水平
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Less than 0.1 ng per μg of protein.
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Interleukin 7 (IL7) (AA 26-154) (Active) protein (His tag)
IL7 宿主: 小鼠 宿主: CHO Cells Recombinant > 95 % as analyzed by SDS-PAGE. Active
Interleukin 7 (IL7) (AA 26-177) (Active) protein (His tag)IL7 宿主: 人 宿主: 大肠杆菌（E. Coli） > 95 % AcA, CC Active
Interleukin 7 (IL7) (AA 26-177) protein (His-IF2DI Tag)IL7 宿主: 人 宿主: 大肠杆菌（E. Coli） Recombinant Greater than 90 % as determined by SDS-PAGE. WB, ELISA
Interleukin 7 (IL7) (AA 26-154) (Active) protein (His tag)IL7 宿主: 大鼠 宿主: 大肠杆菌（E. Coli） Recombinant Greater than 90 % as determined by SDS-PAGE. WB, ELISA Active
Interleukin 7 (IL7) (Active) protein (His tag)IL7 宿主: 小鼠 宿主: 人细胞 Recombinant > 95 % as determined by SDS-PAGE Active
Interleukin 7 (IL7) (AA 26-177) protein (GST tag)IL7 宿主: 人 宿主: 小麦胚 Recombinant WB, ELISA, AA, AP
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应用备注
- Optimal working dilution should be determined by the investigator.
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说明
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Biological activity: ED50 is ≤ 0.5 ng/ml, corresponding to a specific activity of ≥ 2.0 x 106 units/mg as determined by the dose-dependent stimulation of the proliferation of mouse 2E8 cells.
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限制
- 仅限研究用
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状态
- Lyophilized
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溶解方式
- For maximum results, quick spin vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/mL. Do not vortex. It is recommended to further dilute in a buffer, such as 5 % Trehalose, and store working aliquots at -20 °C to -80 °C.
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缓冲液
- Lyophilized, carrier-free.
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注意事项
- Avoid repeated freeze/thaw cycles.
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储存条件
- -20 °C
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储存方法
- Unopened vial can be stored at -20°C or -70°C.
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- IL-7 (IL7) (Interleukin 7 (IL7))
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别名
- IL-7
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背景
- IL-7 was initially described as a stromal derived factor which is capable of inducing the growth of pre-B cells in vitro. IL-7 acts on a variety of cells through its receptor (IL-7R), a heterodimer consisting of IL-7Rα (CD127) and a common γc chain (CD132) shared by other cytokine (IL-2, IL-4, IL-9, IL-15, and IL-21) receptors. In addition, IL-7Rα is shared with TSLP. The generation of IL-7-deficient and IL-7Rα-deficient mice and monoclonal antibody blocking experiments confirmed the requirement of IL-7 for B-cell development in mice. Nevertheless, mutations in the α chain of the IL-7 receptor in patients with severe combined immunodeficiency (SCID) confirmed that IL-7 is indispensable for T-cell development in humans. However, the presence of B cells in these individuals suggests important differences between the role of IL-7 in murine and human lymphocyte development. Thus, although human B-cell development does not appear to require IL-7, immature human B cells do proliferate in response to IL-7. Nevertheless, most recent information suggests that IL-7 dependence in human lymphopoiesis increases during the progression of ontogeny in cord blood and bone marrow. IL-7 can be associated to hepatocyte grow factor (HGFβ) to form a hybrid cytokine (IL-7/HGFβ), which induces greater proliferation of CFU-S, SLPs, and pre-pro-B cells than does native IL-7. The hybrid cytokine signals through both IL-7R (IL-7Rα plus γc) and c-Met. IL-7 has a thymic antiapoptotic effect and induces the expression of antiapoptotic proteins Bcl-2 and Mcl-1 and the inhibition of proapoptotic proteins Bax and Bad. In addition, IL-7 is a key regulator of glucose uptake in T cells. TGF-β has been shown to down-regulate IL-7 mRNA and protein secretion from human bone marrow stromal cells. In addition, TGF-β inhibits IL-7-induced proliferation of pre-B cells.
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分子量
- The 153 amino acid N-terminal methionylated recombinant protein has a predicted molecular mass of 17.4 kDa. The predicted N-terminal amino acid is Met.
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途径
- JAK/STAT Signaling
抗原
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