function:Growth factor active in angiogenesis , lymphangiogenesis and endothelial cell growth , stimulating their proliferation and migration and also has effects on the permeability of blood vessels. May function in the formation of the venous and lymphatic vascular systems during embryogenesis , and also in the maintenance of differentiated lymphatic endothelium in adults. Binds and activates VEGFR-2 (Flk1) and VEGFR-3 (Flt4) receptors. ,PTM:Undergoes a complex proteolytic maturation which generates a variety of processed secreted forms with increased activity toward VEGFR-3 and VEGFR-2. VEGF-D first form an antiparallel homodimer linked by disulfide bonds before secretion. The fully processed VEGF-D is composed mostly of two VEGF homology domains (VHDs) bound by non-covalent interactions. ,similarity:Belongs to the PDGF/VEGF growth factor family. ,subunit:Homodimer; non-covalent and antiparallel. ,tissue specificity:Highly expressed in lung , heart , small intestine and fetal lung , and at lower levels in skeletal muscle , colon , and pancreas. ,
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