VEGFR2/KDR/Flk-1 Proteins and Enzymes

VEGFR2/KDR/Flk-1 (vascular endothelial growth factor receptor 2) is a transmembrane receptor tyrosine kinase that mediates the angiogenic effects of VEGF-A and VEGF-C. It is expressed primarily on vascular endothelial cells and endothelial cell progenitors. It is also expressed on endometrial epithelium, hematopoietic stem cells, liver sinusoidal endothelial cells, Sertoli cells and Leydig cells, platelets and megakaryocytes, sensory and autonomic neurons, Schwann cells, Muller glial cells, retinal progenitors, and osteoblasts. VEGFR2 can associate with VEGFR1, and a soluble form of VEGFR2 can circulate in the serum.