Insights and Challenges in Correcting Force Field Based Solvation Free Energies Using a Neural Network Potential

J Karwounopoulos, Z Wu, S Tkaczyk… - The Journal of …, 2024 - ACS Publications
We present a comprehensive study investigating the potential gain in accuracy for
calculating absolute solvation free energies (ASFE) using a neural network potential to …

Protein–ligand electrostatic binding free energies from explicit and implicit solvation

S Izadi, B Aguilar, AV Onufriev - Journal of chemical theory and …, 2015 - ACS Publications
Accurate yet efficient computational models of solvent environment are central for most
calculations that rely on atomistic modeling, such as prediction of protein–ligand binding …

Assessment of Halogen Off-Center Point-Charge Models Using Explicit Solvent Simulations

A Fortuna, PJ Costa - Journal of Chemical Information and …, 2023 - ACS Publications
Compounds containing halogens can form halogen bonds (XBs) with biological targets such
as proteins and membranes due to their anisotropic electrostatic potential. To accurately …

GPU/CPU algorithm for generalized Born/solvent-accessible surface area implicit solvent calculations

DE Tanner, JC Phillips, K Schulten - Journal of chemical theory …, 2012 - ACS Publications
Molecular dynamics methodologies comprise a vital research tool for structural biology.
Molecular dynamics has benefited from technological advances in computing, such as …

Fast and accurate generation of ab initio quality atomic charges using nonparametric statistical regression

BK Rai, GA Bakken - Journal of computational chemistry, 2013 - Wiley Online Library
We introduce a class of partial atomic charge assignment method that provides ab initio
quality description of the electrostatics of bioorganic molecules. The method uses a set of …

Evaluation of nine condensed-phase force fields of the GROMOS, CHARMM, OPLS, AMBER, and OpenFF families against experimental cross-solvation free energies

S Kashefolgheta, S Wang, WE Acree… - Physical Chemistry …, 2021 - pubs.rsc.org
Experimental solvation free energies are nowadays commonly included as target properties
in the validation of condensed-phase force fields, sometimes even in their calibration. In a …

Unexpected trends in the hydrophobicity of fluorinated amino acids reflect competing changes in polarity and conformation

JR Robalo, AV Verde - Physical Chemistry Chemical Physics, 2019 - pubs.rsc.org
Fluorination can dramatically improve the thermal and proteolytic stability of proteins and
their enzymatic activity. Key to the impact of fluorination on protein properties is the …

Computation of the binding affinities of catechol‐O‐methyltransferase inhibitors: Multisubstate relative free energy calculations

P Nuno Palma, M João Bonifácio… - Journal of …, 2012 - Wiley Online Library
Alchemical free energy simulations are amongst the most accurate techniques for the
computation of the free energy changes associated with noncovalent protein–ligand …

Grid-based surface generalized Born model for calculation of electrostatic binding free energies

N Forouzesh, S Izadi, AV Onufriev - Journal of chemical …, 2017 - ACS Publications
Fast and accurate calculation of solvation free energies is central to many applications, such
as rational drug design. In this study, we present a grid-based molecular surface …

Determination of membrane-insertion free energies by molecular dynamics simulations

J Gumbart, B Roux - Biophysical journal, 2012 - cell.com
The accurate prediction of membrane-insertion probability for arbitrary protein sequences is
a critical challenge to identifying membrane proteins and determining their folded structures …