Recombinant Human Tumor Necrosis Factor-alpha
Recombinant Human Tumor Necrosis Factor-alpha is not approved for use in humans, animals, or in vitro diagnostic procedures. Research use only:
Related Promotion:
Tumor necrosis factor alpha (TNF-α) is produced by neutrophils, activated lymphocytes, macrophages, NK cells, LAK cells, astrocytes endothelial cells, smooth muscle cells and some transformed cells. TNF-α occurs as a secreted, soluble form and as a membrane-anchored form, both of which are biologically active. The naturally-occurring form of TNF-α is glycosylated, but non-glycosylated recombinant TNF-α has comparable. The biologically active native form of TNF--α is reportedly a trimer. Human and murine TNF-α show approximately 79% homology at the amino acid level and cross reactivity between the two species. Two types of receptors for TNF-α have been described and virtually all cell types studied show the presence of one or both of these receptor types.
| Catalog No. | 103-01 |
|---|---|
| Product Code | rhTNF-α |
| Country of Manufacture | United States or China |
| Size/Quantity | 10ug, 50ug, or 1mg |
| Product use | This product is for research use only. It is not approved for use in humans, animals, or in vitro diagnostic procedures. |
| Storage | Store at -20°C after receiving. Upon reconstitution, store at 2-8°C for up to one week. For maximal stability, aliquot and store at -20°C. Avoid repeated freeze/ thaw cycles. |
| Shipping | Dry ice. |
| Synonyms | Cachectin, DIF, TNFA, TNFSF2, TNF-alpha, APC1 protein |
| AA Sequence | VRSSSRTPSD KPVAHVVANP QAEGQLQWLN RRANALLANG VELRDNQLV VPSEGLYLIYS QVLFKGQGCP STHVLLTHTI SRIAVSYQTK VNLLSAIKSP CQRETPEGAE AKPWYEPIYL GGVFQLEKGD RLSAEINRPD YLDFAESGQV YFGIIAL |
| Source | Escherichia coli |
| Molecular Weight | Approximately 17.5 kDa. The recombinant protein preparation is a mixture of a 158 amino acid residue form containing an N-terminal methionine and a 157 amino acid residue form with the sequence of mature human TNF-α. |
| Purity | >95% by SDS-PAGE and HPLC analyses. |
| Biological Activity | Fully biologically active. Specific activity ≥ 2 × 10^7 units/mg, as determined by murine L929 cell cytolysis in the presence of Actinomycin D. |
| Physical Appearance | White lyophilized powder. |
| Formulation | Lyophilized from a 0.2μm filtered concentrated (1mg/ml) solution in PBS, pH 7.0. |
| Endotoxin | < 1EU/μg of growth factor as determined by LAL method. |
| Reconstitution | Reconstitute in sterile distilled water containing 0.1% BSA to a concentration of 0.1-1.0 mg/mL. |
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