Fig. 4From: Structural insights into inhibition of PRRSV Nsp4 revealed by structure-based virtual screening, molecular dynamics, and MM-PBSA studiesThe color-coded illustration of the Gibbs free energy landscape plotted using PC1 and PC2. The lower energy systems are represented by the deeper blue color on the contour map. A Nsp4, (B) Nsp4-ZINC38167083, (C) Nsp4-ZINC16919178, (D) Nsp4-ZINC08792350, (E) Nsp4-ZINC01510656, and (F) Nsp4-ZINC08877407Back to article page