IL-7 Protein (AA 26-154)
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北京 101111
Quick Overview for IL-7 Protein (AA 26-154) (ABIN2666591)
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 26-154
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过滤
- 0.22 μm filtered
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内毒素水平
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Less than 0.01 ng per μg cytokine as determined by the LAL method.
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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 =1.0 - 5 ng/ml, corresponding to a specific activity of 0.2 - 1 x 106 units/mg, as determined by PHA activated PBL proliferation induced by IL-7 in a dose dependent manner. Under this condition the bioactivity is equivalent
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限制
- 仅限研究用
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状态
- Liquid
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溶解方式
- For maximum results, quick spin vial prior to opening. The protein can be aliquoted and stored from -20 °C to -70 °C. Stock solutions can also be prepared at 50-100 μg/mL in sterile buffer (PBS, HPBS, DPBS, or EBSS) containing carrier protein such as 0.2-1 % BSA or HSA and stored in working aliquots at -20 °C to -70 °C.
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缓冲液
- The protein was 0.22 μm filtered in 10 mM NaH2PO4, 150 mM NaCl, pH 7.2.
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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 between 2°C and 8°C for one month, at -20°C for six months, or at -70°C for one year.
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- IL-7 (IL7) (Interleukin 7 (IL7))
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别名
- IL-7
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背景
- Mouse IL-7 was initially described as a pre B-cell grow factor expressed in bone marrow stromal cells. IL-7 is essential for normal murine B cell development, and plays a key role in regulating the homeostasis and function of the T-cells. The binding of IL-7 to its receptor induces dimerization of IL-7Ra and the common gamma chain (gc) which leads to activation of receptor associated tyrosine Janus kinases JAK1 (IL-7R) and JAK3 (γc). The activated JAK proteins in turn phosphorylate specific residues on the IL-7R creating docking sites for signaling molecules such as STAT5 and to a lesser extent STAT1 and STAT3. In adult mice, IL-7/IL-7R signaling up regulates expression of early B cell factor (EBF), and EBF in turn regulates expression of B cell-specific genes required for the transition from lymphoid progenitor to pro-B cells. Besides, IL-7 plays a role in the development of secondary lymphoid tissues. IL-7 is necessary to specify CD8 lineage differentiation during CD4/CD8 cell fate choice in the thymus by inducing expression of the transcription factor Runx3. IL-7 induces anti-apoptotic factors Bcl2 and Bcl-xL and inhibiting pro-apoptotic factors such as Bad and Bax. In this fashion, IL-7 induces cell activation, survival, and proliferation of T lymphocytes. In addition, IL-7 controls T-cell size and metabolism through the activation of PI3 kinase-dependent pathways and regulation of glucose metabolism. IL-7 also controls T cell-dendritic cell interactions that are essential for both T-cell homeostasis and activation in vivo. CD4 T cell lymphopenia increases the expression of circulating IL-7, and TGFb induces IL-7 downregulation.
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分子量
- The 148 amino acid recombinant protein (with ADL-His9-SSGIEGR at N-terminus) has a predicted molecular mass of approximately 17 kDa. The DTT-reduced and non-reduced protein migrates at approximately 20 kDa by SDS-PAGE.
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途径
- JAK/STAT Signaling
抗原
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