- ￥2310 - 3870
- Sino Biological
- 北京
- 11314-H03H
- 2025年08月12日
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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 EphA4 Protein (His & Fc Tag)
- 库存：
99
- 供应商：
北京义翘神州科技股份有限公司
- 规格：
50.00 µg/100.00 µg
| 规格： | 50.00 µg | 产品价格： | ￥2310.0 |
|---|---|---|---|
| 规格： | 100.00 µg | 产品价格： | ￥3870.0 |
蛋白名称：EphA4蛋白, EphA4 protein
蛋白构建：A DNA sequence encoding the human EPHA4 (NP_004429.1) extracellular domain (Met 1-Thr 547) was fused with the C-terminal polyhistidine-tagged Fc region of human IgG1 at the C-terminus.
表达宿主：HEK293 Cells
蛋白纯度：> 92 % as determined by SDS-PAGE
蛋白活性：Measured by its binding ability in a functional ELISA . Immobilized human EPHA5 at 20 μg/ml (100 μl/well) can bind human EFNA4-Fc with a linear ranger of 1.28-32 ng/ml.
蛋白内毒素：< 1.0 EU per μg of the protein as determined by the LAL method
预测N端：Val 20
蛋白分子量：The recombinant human EPHA4/Fc chimera is a disulfide-linked homodimer. The reduced monomer consists of 776 amino acids and predictes a molecular mass of 86.5 kDa. In SDS-PAGE under reducing conditions, the apparent molecular mass of rh EPHA4/Fc monomer is approximately 100-110 kDa due to high levels of glycosylation.
蛋白NP号：NP_004429.1
蛋白氨基酸序列：Met1-Thr547
蛋白标签：C-human IgG1-Fc & His
蛋白保存条件：Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
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文献和实验【原创】Protein A Sepharose 之进化篇。。。
洗脱条件比较剧烈，最后收集的蛋白质很有可能变性，或者是复性困难。 这种洗脱条件剧烈的Protein A 柱结合的重组蛋白质A一般具有5个串联结构域：E、D、A、B、C。这种重组蛋白A虽然除去了不重要的非结合域，仅由5个结构域组成，每个域均可以和IgG的Fc段结合，但不同的域结合强度略有差异。因此洗脱条件不均一，而且经常需要较低的pH值。如果减少串联结构域的个数，并且采取同型结构域串联，就可以避免不同结构域与抗体Fc 段亲和性的差异，洗脱条件会温和而均一。为此，我们可以做一个试验，比较一下
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