Purity: > 90% by SDS - PAGE Format: Liquid. In Phosphate Buffered Saline (pH 7.4) containing 10% glycerol.. TEK, also known as angiopoietin-1 receptor isoform 1, is an endothelial cell-specific receptor tyrosine kinase subfamily (RTK). This protein acts as cell-surface receptor and regulates angiogenesis, endothelial cell survival, proliferation, migration, adhesion and cell spreading, reorganization of the actin cytoskeleton. It has anti-inflammatory effects by preventing the leakage of proinflammatory plasma proteins and leukocytes from blood vessels and is required for normal angiogenesis and heart development during embryogenesis. Recombinant human TEK protein, fused to hIgG-His-tag at C-terminus, was expressed in insect cell and purified by using conventional chromatography techniques.