ED50 < 30 pg/mL, measured in a cytotoxicity assay using L-929 mouse fibrosarcoma cells in the presence of the metabolic inhibitor actinomycin D, corresponding to a specific activity of > 3.3 x 10^7 units/mg.
TNF alpha
Spezies: Human
Wirt: HEK-293 Cells
Recombinant
The purity of the protein is greater than 95 % as determined by SDS-PAGE and Coomassie blue staining.
TNF alpha
Spezies: Human
Wirt: Yeast (Pichia pastoris)
> 97 % by SDS-PAGE.
Active
Beschränkungen
Nur für Forschungszwecke einsetzbar
Format
Lyophilized
Rekonstitution
Reconstituted in ddH2O or PBS at 100 μg/mL.
Buffer
Lyophilized after extensive dialysis against PBS.
Lagerung
-80 °C
Informationen zur Lagerung
Lyophilized recombinant Human Tumor Necrosis Factor-alpha (TNF-a), remains stable up to 6 months at -80 °C from date of receipt. Upon reconstitution, human TNF-alpha should be stable up to 1 week at 4 °C or up to 3 months at -20 °C.
Tumor Necrosis Factor-alpha (TNF-a) is a homotrimer with a subunit molecular mass of 17.3 kDa. Tumor Necrosis Factor-alpha(TNF-a) plays a major role in growth regulation, differentiation, inflammation, viral replication, tumorigenesis, and autoimmune diseases, and in viral, bacterial, fungal, and parasitic infections. Besides inducing hemorrhagic necrosis of tumors, TNF has been found to be involved in tumorigenesis, tumor metastasis, viral replication, septic shock, fever, inflammation, and autoimmune diseases including Crohn's disease, and rheumatoid arthritis as well as graft-versus-host disease.Recombinant Human Tumor Necrosis Factor-alpha (TNF-a) produced in E.coli is a single non-glycosylated polypeptide chain containing 157 amino acids. A fully biologically active molecule, rhTNF-a has a molecular mass of 17.3 kDa analyzed by reducing SDS-PAGE. Synonyms: TNF-alpha, Tumor necrosis factor ligand superfamily member 2, TNF-a, Cachectin, DIF, TNFA, TNFSF2