Electrostatic Hull Importance. Importance analysis and implications of the electrostatic potential classifier. (A) NMR structure of p2 . (B) Electrostatic hull used as features for model training. Each sphere represents a feature on the hull, colored according to its importance for model performance (white to red). (C) Electrostatic potential at hull averaged over susceptible p2 models. (D) Electrostatic potential at hull averaged over resistant p2 models.