vascular endothelial growth factor a vegf a protein molecule. 3d rendering. atoms are represented colored spheres.

vascular endothelial growth factor vegf protein molecule 3d rendering atoms are represented colored spheres hvegf permeability vpf signal vasculogenesis angiogenesis oxygen blood cancer retina bevacizumab ranibizumab endothelium diabetic retinopathy breast agerelated macular degeneration amd pdb1tzi structure peptide amino acid polypeptide polymer science scientific disease health molecular model