Recombinant Human IFN alpha2b
- 货号：EPT205
- 价格：￥600.00 元
- 点击：399
产品介绍
物理性质
| 分子量 | 19.4 KDa |
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| 表观分子量 | 17 KDa, reducing conditions |
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| 形态 | Lyophilized from a 0.2 μm filtered solution of 20mM PB, 150mM NaCl, pH 7.2. |
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| 纯度 | Greater than 95% as determined by reducing SDS-PAGE. |
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活性与内毒素
| 内毒素水平 | Less than 0.1 ng/µg (1 EU/µg) as determined by LAL test. |
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| 活性 | Measured in antiviral assay using A549 human lung cancer cells infected with vesicular stomatitisvirus (VSV) The ED50 for this effect is 5 ng/mL. |
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储存与运输
| 溶解方法 | Always centrifuge tubes before opening.Do not mix by vortex or pipetting.
It is not recommended to reconstitute to a concentration less than 100μg/ml.
Dissolve the lyophilized protein in distilled water.
Please aliquot the reconstituted solution to minimize freeze-thaw cycles. |
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| 储存方法 | Lyophilized protein should be stored at < -20°C, though stable at room temperature for 3 weeks.
Reconstituted protein solution can be stored at 4-7°C for 2-7 days.
Aliquots of reconstituted samples are stable at < -20°C for 3 months. |
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| 运输条件 | The product is shipped at ambient temperature.
Upon receipt, store it immediately at the temperature listed below. |
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详细说明
| 背景说明 | At least 23 different variants of IFN-α are known. The individual proteins have molecular masses between 19-26 kDa and consist of proteins with lengths of 156-166 and 172 amino acids. All IFN-α subtypes possess a common conserved sequence region between amino acid positions 115-151 while the amino-terminal ends are variable. Many IFN-α subtypes differ in their sequences by only one or two positions. Naturally occurring variants also include proteins that are truncated by 10 amino acids at the carboxyl-terminal end. |
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