>sp|P83942|TXVE_VIPAP Snake venom vascular endothelial growth factor toxin HF OS=Vipera aspis aspis QVRPFLEVHERSACQARETLVSILQEYPDEISDIFRPSCVAVLRCSGCCTDESLKCTPVG KHTVDLQIMRVNPRTQSSKMEVMKFTEHTACECRPRRKQGEPDGPKEKPR