Recombinant Human CD23 Protein (His Tag)
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- 表达系统： HEK293 Cells
- 蛋白编码： P06734
| 别称 |
BLAST-2;C-type lectin domain family 4 member J;CD23;CD23A;CLEC4J;FCE2;FCER2;Fc-epsilon-RII;IGEBF ;Immunoglobulin E-binding factor;Low affinity immunoglobulin epsilon Fc receptor;Lymphocyte IgE receptor
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| 表达系统 |
HEK293 Cells
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| 序列 |
Asp48-Ser321
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| 蛋白编码 |
P06734
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| 种属 |
Human
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| 计算分子量 |
32.1 kDa
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| 表观分子量 |
35-40 kDa
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| 标签 |
N-His
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| 生物活性 |
Not validated for activity
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| 纯度 |
> 95 % as determined by reducing SDS-PAGE.
|
| 内毒素 |
< 1.0 EU per μg of the protein as determined by the LAL method.
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| 保存条件 |
Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months.
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| 运输条件 |
This product is provided as lyophilized powder which is shipped with ice packs.
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| 制剂 |
Lyophilized from a 0.2 μm filtered solution of PBS, pH 7.4.
Normally 5% - 8% trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the printed manual. |
| 复溶方法 |
Please refer to the printed manual for detailed information.
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| 背景 |
Low affinity immunoglobulin epsilon Fc receptor(CD23) is a secreted and single-pass type II membrane protein which is also exists as a soluble excreted form. There are two forms of CD23: CD23a and CD23b. CD23a is present on follicular B cells, whereas CD23b requires IL-4 to be expressed on T-cells, monocytes, Langerhans cells, eosinophils, and macrophages. Unlike many of the antibody receptors, CD23/FCER2 is a C-type lectin. It is found on mature B cells, activated macrophages, eosinophils, follicular dendritic cells, and platelets. In flow cytometry, CD23/FCER2 is helpful in the differentiation of chronic lymphocytic leukemia (CD23-positive) from mantle cell leukemia (CD23-negative). CD23/FCER2 can also be demonstrated in germinal centre B-cells using immunohistochemistry, but it is not present in the resting cells of the surrounding mantle zone. CD23/FCER2 has essential roles in the regulation of IgE production and in the differentiation of B-cells (it is a B-cell-specificantigen).
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实验操作视频
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