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![Tumor necrosis factor (TNF), partial (Active), human, recombinant](https://www.biomol.com/media/image/0d/4b/9d/CSB-AP004871HU-1_600x600.jpg)
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You can also order by e-mail: info@biomol.com
Larger quantity required? Request bulk
Organism: Homo sapiens (Human). Source: E.coli. Expression Region: 77-233aa. Protein Length:... more
Product information "Tumor necrosis factor (TNF), partial (Active), human, recombinant"
Organism: Homo sapiens (Human). Source: E.coli. Expression Region: 77-233aa. Protein Length: Partial. Tag Info: C-terminal 6xHis-tagged. Target Protein Sequence: VRSSSRTPSD KPVAHVVANP QAEGQLQWLN RRANALLANG VELRDNQLVV PSEGLYLIYS QVLFKGQGCP STHVLLTHTI SRIAVSYQTK VNLLSAIKSP CQRETPEGAE AKPWYEPIYL GGVFQLEKGD RLSAEINRPD YLDFAESGQV YFGIIAL. Purity: Greater than 95% as determined by SDS-PAGE. Endotoxin: Less than 1.0 EU/µg as determined by LAL method. Biological Activity: The ED50 as determined in a cytotoxicity assay using L-929 mouse fibroblast cells in the presence of the metabolic inhibitor actinomycin D is 10-40 pg/ml. Form: Lyophilized powder. Buffer: Lyophilized from a 0.2 µm filtered 20 mM PB, 150 mM NaCl, pH 7.4. Reconstitution: We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20 °C/-80 °C. Our default final concentration of glycerol is 50%. Customers could use it as reference. Storage: The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20 °C/-80 °C. The shelf life of lyophilized form is 12 months at -20 °C/-80 °C. Notes: Repeated freezing and thawing is not recommended. Store working aliquots at 4 °C for up to one week. Relevance: Tumor Necrosis Factor-alpha (TNF-alpha) is secreted by macrophages, monocytes, neutrophils, T-cells, and NK-cells following stimulation by bacterial LPS. Cells expressing CD4 secrete TNF-alpha while cells that express CD8 secrete little or no TNF-alpha. Synthesis of TNF-alpha can be induced by many different stimuli including interferons, IL2, and GM-CSF. The clinical use of the potent anti-tumor activity of TNF-alpha has been limited by the proinflammatory side effects such as fever, dose-limiting hypotension, hepatotoxicity, intravascular thrombosis, and hemorrhage. Designing clinically applicable TNF-alpha mutants with low systemic toxicity has been of intense pharmacological interest. Human TNF-alpha that binds to murine TNF-R55 but not murine TNF-R7, exhibits retained anti-tumor activity and reduced systemic toxicity in mice compared with murine TNF-alpha, which binds to both murine TNF receptors. Based on these results, many TNF-alpha mutants that selectively bind to TNF-R55 have been designed. These mutants displayed cytotoxic activities on tumor cell lines in vitro and have exhibited lower systemic toxicity in vivo. Recombinant Human TNF-alpha High Active Mutant differs from the wild-type by amino acid subsitution of amino acids 1-7 with Arg8, Lys9, Arg10 and Phe157. This mutant form has been shown to have increased activity with less inflammatory side effects in vivo. Reference: n/a. Function: Cytokine that binds to TNFRSF1A/TNFR1 and TNFRSF1B/TNFBR. It is mainly secreted by macrophages and can induce cell death of certain tumor cell lines. It is potent pyrogen causing fever by direct action or by stimulation of interleukin-1 secretion and is implicated in the induction of cachexia, Under certain conditions it can stimulate cell proliferation and induce cell differentiation. Impairs regulatory T-cells (Treg) function in individuals with rheumatoid arthritis via FOXP3 dephosphorylation. Upregulates the expression of protein phosphatase 1 (PP1), which dephosphorylates the key 'Ser-418' residue of FOXP3, thereby inactivating FOXP3 and rendering Treg cells functionally defective
Keywords: | TNF, TNFA, Recombinant Human Tumor necrosis factor (TNF), partial (Active) |
Supplier: | Cusabio |
Supplier-Nr: | AP004871HU |
Properties
Application: | Active protein |
Conjugate: | No |
Host: | E.coli |
Species reactivity: | human |
MW: | 18.5 kD |
Purity: | >95% (SDS-PAGE) |
Format: | Lyophilized |
Database Information
KEGG ID : | K03156 | Matching products |
UniProt ID : | P01375 | Matching products |
Gene ID | GeneID 7124 | Matching products |
Handling & Safety
Storage: | -20°C |
Shipping: | +4°C (International: +4°C) |
Caution
Our products are for laboratory research use only: Not for administration to humans!
Our products are for laboratory research use only: Not for administration to humans!
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