Recombinant Human TNF beta/TNFB Protein

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- 表达系统: E.coli
- 蛋白编码: P01374
- 应用性: Cell culture
别称 |
LT-Alpha;LTA;Lymphotoxin-Alpha;TNF-Beta;TNFB;TNFSF1;Tumor Necrosis Factor Ligand Superfamily Member 1
|
表达系统 |
E.coli
|
序列 |
Leu35-Leu205
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蛋白编码 |
P01374
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种属 |
Human
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计算分子量 |
18.7 kDa
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表观分子量 |
21 kDa
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标签 |
N-His
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生物活性 |
Measure by its ability to induce cytotoxicity in L929 cells in the presence of actinomycin D. The ED50 for this effect is <3 pg/mL. The specific activity of recombinant human TNF beta is > 3.3x 108 IU/mg.
|
纯度 |
> 98 % as determined by reducing SDS-PAGE.
|
内毒素 |
< 0.1 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 sterile 20 mM sodium citrate, 0.2 M NaCl, pH 3.5.
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 |
Tumor Necrosis Factor β (TNF-β) is a secreted protein belonging to the tumor necrosis factor family. TNF-β binds to TNFRSF1A/TNFR1, TNFRSF1B/TNFBR and TNFRSF14/HVEM in homotrimeric form, binds to TNFRSF3/LTBR in heterotrimeric form with LTB. TNF-β forms heterotrimers with lymphotoxin-beta, which anchors TNF-β to the cell surface. TNF-β mediates the inflammatory, immunostimulatory, and antiviral response, involves in the formation of second lymphoid organs during development, has a role in apoptosis. TNF-β is produced by lymphocytes and cytotoxic for a variety of tumor cells in vitro and in vivo.
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实验操作视频
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