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- SPECIES: Human
- SOURCE SPECIES: E. coli
- RECOMBINANT PROTEIN SEQUENCE: MLPGVGLTPS AAQTARQHPK MHLAHSTLKP AAHLIGDPSK QNSLLWRANT DRAFLQDGFS LSNNSLLVPT SGIYFVYSQV VFSGKAYSPK ATSSPLYLAH EVQLFSSQYP FHVPLLSSQK MVYPGLQEPW LHSMYHGAAF QLTQGDQLST HTDGIPHLVL SPSTVFFGAF AL
- BIOLOGICAL ACTIVITY: The ED50 was determined by the cytolysis of murine L929 cells in the presence of Actinomycin - D is ≤ 0.05 ng/mL, corresponding to a specific activity of ≥ 2 x 107 units/mg.
Properties
- PURITY: Greater than 98% by SDS-PAGE gel and HPLC analyses.
Endotoxin level is less than 0.1 ng per μg (1EU/μg). - PHYSICAL STATE: Lyophilized
- STORAGE CONDITIONS: The lyophilized TNF beta recombinant protein is stable for at least 2 years from date of receipt at -20°C. Reconstituted TNF beta is stable for at least 3 months when stored in working aliquots with a carrier protein at -20°C. As with any protein, exposing TNF beta recombinant protein to repeated freeze / thaw cycles is not recommended. When working with proteins care should be taken to keep recombinant protein at a cool and stable temperature.
Additional Info
- NCBI OFFICIAL SYMBOL: LTA
- ADDITIONAL NAMES: LT, TNFB, TNFSF1, Lymphotoxin-alpha, TNF-beta, LT-alpha
- Protein Accession Number: NP_000586.2
- PROTEIN GI NUMBER: 6806893
- NCBI GENE ID NUMBER: 4049
Background
- TNF-β is a potent mediator of inflammatory and immune responses. It belongs to the TNF family of ligands and signals through TNFR1 and TNFR2. TNF-β is produced by activated T and B lymphocytes, and has similar activities to TNF-alpha. Like TNF-α, TNF-β is involved in the regulation of various biological processes including cell proliferation, differentiation, apoptosis, lipid metabolism, coagulation, and neurotransmission. TNF-β is secreted as a soluble polypeptide, but can form heterotrimers with lymphotoxin-β, which effectively anchors the TNF-β to the cell surface. TNF-β is cytotoxic to a wide range of tumor cells. Recombinant human TNF-β is a secreted 171 amino acid protein (18.6 kDa) which forms an active non-disulfide linked homotrimer structure in solution.
Disclaimer
- FOR RESEARCH USE ONLY
For additional information, visit ProSci's Terms & Conditions Page. - Disclaimer: This product is for research use only.
Shipping Info
$65 Standard Overnight flat rate for as many products shipped within the United States.
$35 Dry Ice Shipment fee may be required on some items.
Note: Online orders only accepted for shipment within the USA. Click here for the list of international distributors.
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