Mouse Tumor Necrosis Factor Alpha Recombinant from Innovative Research has been recombinantly produced in yeast and purified using ion-exchange chromatography. This is a lyophilized powder with a purity of greater than 95% as determined by SDS-PAGE analysis. This product is endotoxin free, naturally folded, and post-translationally modified. This product can be used for cell culture, as an ELISA Standard for TNF Alpha, and as a Western Blot control. Tumor Necrosis Factor is a cytokine (cell signaling protein) that plays a role in inflammation and is part of the acute phase reaction (concentrations of TNF will increase or decrease in response to inflammation). The main role of TNF is to regulate immune cells in various ways. More Details: Source: Yeast Culture Purification: Ion Exchange Chromatography Purity: > 95% by SDS-PAGE Storage Conditions: -20░C At Innovative Research, we provide reliable, consistent products that deliver reliable, consistent results. Please note ¢ this product replaces our old product number IRKFAP0302 (same product, new number).