GMP-TL303 Recombinant Human TNF α Protein, 100μg
Beschreibung
Product Information
Protein sequence: A DNA sequence encoding the human TNF-α (GenBank: ADV31546.2 V77-L233) was expressed with a polyhistidine tag at the C- terminus.
Expression Host: HEK293 cells
QC Testing Purity: > 90 % as determined by SDS-PAGE
Activity: In the presence of the metabolic inhibitor actinomycin D, cytotoxicity assays are performed with L929 cells with a specific activity ≥ 1.0×107 IU/mg.
Endotoxin: < 0.1EU per 1μg of the protein as determined by the LAL method.
Molecular Mass: The Recombinant protein predicts a molecular mass of 18.2 KDa.
Formulation: Lyophilized from sterile PBS, pH 7.4. Normally 6 % mannitol are added as protectants before lyophilization.
Stability & Storage: Lyophilized preparation can be stored at -20 ℃. 6 months at -20℃ under sterile conditions after reconstitution. 12 months at -80℃ under sterile conditions after reconstitution. Recommend to aliquot the protein into smaller quantities after reconstituting with water for injection, normal saline or PBS. Avoid repeated freeze-thaw cycles.