VEGI (Vascular Endothelial Growth Inhibitor) is a member of the tumor necrosis factor family. VEGI is predominantly an endothelial cell-specific gene, and recombinant VEGI is a potent inhibitor of endothelial cell proliferation, angiogenesis and tumor growth. VEGI exerts two activities of endothelial cells: early Gl arrest of G0/G1-cells responding to growth stimuli, and programmed cell death. VEGI is also able to regulate the expression of several important genes involved in angiogenesis. Human VEGF is a 21.8 kDa homodimeric protein consisting of 192 amino acid polypeptide chains. MW: 21.8 kDa. Purity ≥95%