Recombinant Mouse TNF (E. coli)
Cat. No. | Z200215 |
Name | Recombinant Mouse TNF (E. coli) |
Description | TNF is secreted by macrophages, monocytes, neutrophils, T cells, natural killer cells following their stimulation by bacterial lipopolysaccharides. Cells expressing CD4 secrete TNF-alpha while CD8(+) cells secrete little or no TNF-alpha. Stimulated peripheral neutrophilic granulocytes but also unstimulated cells and also a number of transformed cell lines, astrocytes, microglial cells, smooth muscle cells, and fibroblasts also secrete TNF. Human milk also contains this factor. The synthesis of TNF-alpha is induced by many different stimuli including interferons, IL-2, GM-CSF, SP, Bradykinin, immune complexes, inhibitors of cyclooxygenase and PAF (platelet activating factor). Human TNF-alpha is a non-glycosylated protein of 17 kDa and a length of 157 amino acids. Murine TNF-alpha is N-glycosylated. Homology with TNF-beta is approximately 30%. TNF-alpha forms dimers and trimers. |
Organism | Mouse (M. musculus) |
Unit quantity | 50 µg |
Family | TNF Super-family |
Aliases |
TNF-alpha, TNF-a, Tumor necrosis factor ligand superfamily member 2, Cachectin, Tnfa, Tnfsf2, Tnf Recombinant Mouse Tumor Necrosis Factor Alpha (TNF) |
Gene Symbol | TNF |
Gene ID | 21926 |
Accession Number | P06804 |
Source | E. coli |
Species | Mouse (M. musculus) |
Appearance | Lyophilized Powder |
Molecular Weight | 17 kDa |
Endotoxin Level | <1.0 EU/µg of recombinant protein as determined by the LAL method. |
Purity | >95% as determined by SDS-PAGE |
Formulation | Recombinant mouse TNF alpha was lyophilized from 0.2 μm filtered PBS solution, pH 7.0. |
Function | The ED(50) was determined cytolysis of murine L929 cells in the presence of Actinomycin D is ≤ 0.05 ng/mL, corresponding to a specific activity of ≥ 3.0 x 10^7 units/mg. |
Reconstitution | A quick spin of the vial followed by reconstitution in distilled water to a concentration not less than 0.1 mg/mL. This solution can then be diluted into other buffers. |
Storage | The lyophilized protein is stable for at least one year from date of receipt at -70°C. Upon reconstitution, this cytokine can be stored in working aliquots at 2° - 8°C for one month, or at -20°C for six months, with a carrier protein without detectable loss of activity. Avoid repeated freeze/thaw cycles. |
Usage | For research use only. Not for diagnostic or therapeutic use. |
Material Citation | If use of this material results in a scientific publication, please cite the material in the following manner: Applied Biological Materials Inc, Cat. No. Z200215 |
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