Improving the Efficiency of Protein-Ligand Binding Free-Energy Calculations by System Truncation
We have studied whether the efficiency of alchemical free-energy calculations with the Bennett acceptance ratio method of protein-ligand binding energies can be improved by simulating only part of the protein. To this end, we solvated the full protein in a spherical droplet with a radius of 46 angstrom, surrounded by a vacuum. Then, we systematically reduced the size of the droplet and at the same
