| 背景描述 | Tumor necrosis factor alpha (TNF alpha) stimulates the acute phase of the immune response. In response to a pathogen, TNF alpha is one of the first to be released and can apply its effects in many organs. TNF alpha stimulates the release of corticotropic releasing hormone, suppresses appetite, and induces fever, in the hypothalamus. TNF increase vasodilation and loss of vascular permeability, it helps recruit lymphocyte, neutrophil, and monocyte to the inflammation site by regulating chemokine release. |
| 别称 | tumor necrosis factor alpha, TNFa, TNFSF2 |
| 蛋白编码 | P23563 |
| 分子量 | The protein has a calculated MW of 18.1 kDa. The protein migrates as 13 kDa under reducing condition (SDS-PAGE analysis). |
| 表达系统 | Escherichia coli |
| 纯度 | >98% as determined by SDS-PAGE. |
| 生物活性 | Measure by its ability to induce cytotoxicity in PK15 cells in the presence of the actinomycin D. The ED₅₀ for this effect is <15 pg/mL. |
| 内毒素检测 | <0.1 EU per 1 μg of the protein by the LAL method. |
| 蛋白序列 | MLRSSSQTSDKPVAHVVANVKAEGQLQWQSGYANALLANGVKLKDNQLVVPTDGLYLIYSQVLFRGQGCPSTNVFLTHTISRIAVSYQTKVNLLSAIKSPCQRETPEGAEAKPWYEPIYLGGVFQLEKDDRLSAEINLPDYLDFAESGQVYFGIIAL with polyhistidine tag at the C-terminus. |
| 蛋白标签 | His Tag (C-term) |
| 产品形式 | The protein was lyophilized from a 0.2 µm filtered solution containing 1X PBS, pH 7.4. If you have any concerns or special requirements, please confirm with us. |
| 产品应用 | Cell Culture |
| 储存 | Lyophilized protein: Store at -20°C for 1 year. After reconstitution: · Store at 2°C to 8°C for up to 1 week. · For extended storage (beyond 1 week), dilute the reconstituted protein in a buffer containing a carrier protein or stabilizer (e.g., 0.1% BSA, 10% FBS, 5% HSA, or 5% trehalose solution). The final concentration is not less than 10 μg/ml. Prepare aliquots (≥20 μl) and store at -20°C or -80°C for 3 to 6 months. Avoid repeated freeze-thaw cycles. |
| 运输 | Blue Ice |
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| SDS- PAGE analysis of recombinant swine TNF alpha |
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