Figure 7From: Role of accelerated segment switch in exons to alter targeting (ASSET) in the molecular evolution of snake venom proteinsRibbon (a) and surface (b) models of plasminogen activator (TSV-PA) (PDB ID: 1BQY). The segments that undergo exchange are shown in green, dark blue and turquoise color. The side chains of the active site residues are shown in the ribbon model. The substrate binding area is shown in turquoise color.Back to article page