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Species of Origin
Mouse
Expression system
Escherichia coli
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Affinity Tag
His Tag (C-term)
Buffer
Lyophilized from a 0.2 µm filtered solution of PBS, pH 8.0.
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Purity
>98% as determined by SDS-PAGE analysis.
Molecular weight
The protein has a calculated MW of 18.2 kDa.
The protein migrates as 16 kDa under reducing condition (SDS-PAGE analysis). -
Activity
Measure by its ability to induce cytotoxicity in L929 cells in the presence of actinomycin D. The ED₅₀ for this effect is <40 pg/mL. The specific activity of recombinant mouse TNF alpha is approximately >2.5x 10⁷ IU/mg.
Endotoxin level
<0.1 EU per 1 μg of the protein by the LAL method.
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Form
Lyophilized
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Specifications
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Background
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Background
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.
Synonyms
Tumor necrosis factor, Cachectin, Tumor necrosis factor ligand superfamily member 2 , TNF-a
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Uniprot ID
#P06804
Sequence Note
Leu80-Leu235
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Instruction
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Reconstitution
It is recommended to reconstitute the lyophilized protein in sterile H₂O to a concentration not less than 200 μg/mL and incubate the stock solution for at least 20 min to ensure sufficient re-dissolved.
Shipping
The product is shipped with polar packs. Upon receipt, store it immediately at -20°C or lower for long term storage.
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Stability & Storage
This product is stable after storage at:
- -20°C for 12 months in lyophilized state from date of receipt.
- -20°C or -80°C for 1 month under sterile conditions after reconstitution.
Avoid repeated freeze/thaw cycles.
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Review
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Publication
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Datasheet & Documents
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Disclaimer:For Research Use or Further Manufacturing Only.