VDW surface area over which Vs is positive
Average value of negative electrostatic potential on the solvent accessible surface
VDW surface area over which Vs is negative
Variance of all Es solvent accessible surface
Average value of positive electrostatic potential at the VDW surface
Variance of positive electrostatic potential on the solvent accessible surface
Average value of negative electrostatic potential at the VDW surface
Variance of negative electrostatic potential on the solvent accessible surface
Variance of all electrostatic potential at the VDW surface
Variance of positive electrostatic potential at the VDW surface