Recombinant Ferret TNF protein(Val77-Leu233)

• Cat.No.: TNF-1022F
• Product Overview: Recombinant Ferret (Mustela putorius furo) TNF(A3FBF1) (Val 77-Leu 233) was expressed in E. coli, with an initial Met at the N-terminus.

Specification

• Species: Ferret
• Source: E.coli
• Tag: Non
• ProteinLength: 77-233 a.a.
• Form: Lyophilized from sterile PBS, pH 7.4. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization.
• Bio-activity: Measured in a cytotoxicity assay using L929 mouse fibrosarcoma cells in the presence of the metabolic inhibitor actinomycin D. The EC50 for this effect is typically 50-200 pg/ml.
• Molecular Mass: The recombinant Ferret TNFα consists of 158 amino acids and has a calculated molecular mass of 17.3 kDa. The apparent molecular mass of the recombinant protein is approximately 16 kDa in SDS-PAGE under reducing conditions.
• Purity: > 95 % as determined by SDS-PAGE
• Storage: Samples are stable for up to twelve months from date of receipt at -20°C to -80°C. Store it under sterile conditions at -20°C to -80°C. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
• Reconstitution: It is recommended that sterile water be added to the vial to prepare a stock solution of 0.2 ug/ul. Centrifuge the vial at 4°C before opening to recover the entire contents.