Assessing the stability of free-energy perturbation calculations by performing variations in the method
We have calculated relative binding affinities for eight tetrafluorophenyl-triazole-thiogalactoside inhibitors of galectin-3 with the alchemical free-energy perturbation approach. We obtain a mean absolute deviation from experimental estimates of only 2–3 kJ/mol and a correlation coefficient (R2) of 0.5–0.8 for seven relative affinities spanning a range of up to 11 kJ/mol. We also studied the effe
