RR TNF-A
Cat# 300-18-20UG
Size : 20UG
Marca : FUJIFILM
Recombinant Rat TNF-α
Tumor necrosis factor alpha (TNF-α) is an inflammatory cytokine secreted by macrophages, monocytes, neutrophils, T cells, and NK-cells following stimulation by bacterial lipopolysaccharide (LPS). TNF-α signal activation occurs through two receptors, TNFR1 and TNFR2. TNFR1 is expressed on most cell types, unlike TNFR2, which is expressed mainly on immune cells. TNF-α functions to stimulate phagocytosis in macrophages, chemoattract neutrophils, increase insulin resistance, and induce fever.
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Instructions
Centrifuge vial before opening. Suspend the product by gently pipetting the above recommended solution down the sides of the vial. DO NOT VORTEX. Allow several minutes for complete reconstitution. For prolonged storage, dilute to working aliquots in a 0.1% BSA solution, store at -80°C and avoid repeat freeze thaws.
Technical Specifications
| Alternate Names | TNFSF2, Cachectin, DIF, Necrosin, Cytotoxin, Cachexin, TNF |
| Accession Number | P16599 |
| Source | Genetically modified E.coli |
| Predicted Molecular Mass | Monomer, 17.3 kDa (157 aa) |
| AA Sequence | MLRSSSQNSS DKPVAHVVAN HQAEEQLEWL SQRANALLAN GMDLKDNQLV VPADGLYLIY SQVLFKGQGC PDYVLLTHTV SRFATSYQEK VSLLSAIKSP CPKDTPEGAE LKPWYEPMYL GGVSQLEKGD LLSAEVNLPK YLDITESGQV YFGVIAL |
| Formulation | Lyophilized from a 0.2 µm filtered solution containing 10 mM sodium phosphate, 50 mM sodium chloride, pH 7.5 |
| Product Reconstitution | Sterile water at 0.1 mg/mL |
| Country of Origin | USA |
| Specification* | Method of Determination | Acceptance Criteria |
| Purity | Reducing and Non-Reducing SDS PAGE | ≥ 95% |
| Endotoxin | Kinetic LAL | ≤ 1 EU/µg |
| Biological Activity (ED50) | Cytolysis of mouse L929 cells in the presence of Actinomycin D | ≤ 0.05 ng/mL |
*Lot-specific values for the above specifications are supplied with each product on its corresponding COA. The values provided here are minimum expected values to pass internal requirements.