LIF Protein (AA 23-202) (GST tag)
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- 抗原 See all LIF 蛋白
- LIF (Leukemia Inhibitory Factor (LIF))
- 蛋白类型
- Recombinant
- 生物活性
- Active
- 产品特性
- AA 23-202
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宿主
- 人, 小鼠
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资源
- 大肠杆菌(E. Coli)
- 标记
- This LIF protein is labelled with GST tag.
- 应用范围
- SDS-PAGE (SDS)
- 原理
- LIF (human) (rec.)
- 特异性
- Mouse and human embryonic stem cells.
- 交叉反应
- 人, 小鼠
- 产品特性
- Human LIF (aa 23-202) is fused at the N-terminus to a tag.
- 纯度
- >95 % (SDS-PAGE)
- 内毒素水平
- <0.05EU/μg purified protein (LAL test).
- Biological Activity Comment
- Maintains pluripotency of mouse and human embryonic stem cells. The LIF (GST-tagged) from AdipoGen has the same activity as cleaved LIF.
- Top Product
- Discover our top product LIF 蛋白
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- 应用备注
- Optimal working dilution should be determined by the investigator.
- 限制
- 仅限研究用
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- 状态
- Lyophilized
- 浓度
- Lot specific
- 缓冲液
- Contains PBS.
- 注意事项
- After reconstitution, prepare aliquots and store at -20 °C. Avoid freeze/thaw cycles. Centrifuge lyophilized vial before opening and reconstitution. PBS containing at least 0.1 % BSA should be used for further dilutions.
- 储存条件
- 4 °C,-20 °C
- 储存方法
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Short Term Storage: +4°C
Long Term Storage: -20°C
Use & Stability: Stable for at least 6 months after receipt when stored at -20°C. Working aliquots are stable for up to 3 months when stored at -20°C.
- 有效期
- 6 months
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- 抗原
- LIF (Leukemia Inhibitory Factor (LIF))
- 别名
- LIF (LIF 产品)
- 背景
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Leukemia Inhibitory Factor, Differentiation-stimulating Factor, D Factor, Melanoma-derived LPL Inhibitor
LIF has the capacity to induce terminal differentiation in leukemic cells. Its activities also include the induction of hematopoietic differentiation in normal and myeloid leukemia cells, the induction of neuronal cell differentiation and the stimulation of acute-phase protein synthesis in hepatocytes. LIF activates JAK & STAT signaling in human embryonic stem (ES) cells, but this pathway does not maintain pluripotency in these cells, which instead rely on FGF2-mediated ERK signaling. By contrast, mouse ES cells can be maintained by LIF-mediated JAK & STAT signaling. LIF binds to a high affinity heterodimeric receptor complex consisting of two proteins: LIF-R alpha that binds LIF with low affinity and the 130 kDa (gp130) subunit that by itself does not bind LIF, but is required for high affinity binding of LIF.
- 分子量
- ~46kDa (SDS-PAGE)
- UniProt
- P15018
- 途径
- JAK/STAT Signaling, Positive Regulation of Peptide Hormone Secretion, Negative Regulation of Hormone Secretion, Stem Cell Maintenance, Growth Factor Binding
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