Human TNF-alpha is a cytokine that plays a crucial role in the inflammatory response. It is produced by various immune cells such as macrophages and T-cells and is involved in the regulation of immune cell proliferation, differentiation, and apoptosis. Product Properties Synonyms Tumor Necrosis Factor, TNFA, TNFSF2, Cachectin, Cytotoxin, Differentiation-inducing factor, DIF Uniprot No. P01375 Source E.coli-derived human TNF-α/TNFSF2 protein, Val77-Leu233, with C-terminal His tag. Molecular Weight Approximately 18.5 kDa. Purity > 95% as determined by SDS-PAGE. Endotoxin < 0.01 EU per 1μg of the protein by the LAL method. Formulation Lyophilized from a 0.2 μm filtered concentrated solution in PBS. Reconstitution Centrifuge tubes before opening. Dissolve lyophilized protein with PBS. Recommend to aliquot the protein into smaller quantities when first used and avoid repeated freeze-thaw cycles. Shipping and Storage The product should be stored at -25~-15℃ for 1 year from date of receipt. 2-7 days, 2 ~8 °C under sterile conditions after reconstitution. 3 months, -25~-15℃ under sterile conditions after reconstitution. Cautions 1.Please operate with lab coats and disposable gloves, for your safety. 2.This product is for research use only.