Discription：Tumor necrosis factor alpha （TNF-α） , also called cachectin, is the best-know member of the TNF-family, which can cause cell death. This protein is produced by neutrophils, activated lymphocytes, macrophages, NK cells, LAK cells, astrocytes endothelial cells, smooth muscle cells and some transformed cells. The naturally-occurring form of TNF-α is glycosylated, but non-glycosylated recombinant TNF-α has comparable biological activity. The recombinant TNF-α is a non-glycosylated polypeptide chain containing 158 amino acids. The native form of TNF-α is reportedly a trimer.
