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Accurate determination of protein:ligand standard binding free energies from molecular dynamics simulations. Designing a reliable computational methodology to calculate protein:ligand standard binding free energies is extremely challenging. The large change in configurational enthalpy and entropy that accompanies the association of ligand and protein is notoriously difficult to capture in naive brute-force simulations. Addressing this issue, the present protocol rests upon a rigorous statistical mechanical framework for the determination of protein:ligand binding affinities together with the comprehensive Binding Free-Energy Estimator 2 (BFEE2) application software. With the knowledge of the bound state, available from experiments or docking, application of the BFEE2 protocol with a reliable force field supplies in a matter of days standard binding free energies within chemical accuracy, for a broad range of protein:ligand complexes. Limiting undesirable human intervention, BFEE2 assists the end user in preparing all the necessary input files and performing the post-treatment of the simulations towards the final estimate of the binding affinity. Nature Protocols, 2022.

Recent publications


Free Energy Methods for the Description of Molecular Processes
Christophe Chipot;
Annual Review of Biophysics (2023) 52 (1):
A Practical Guide to Recent Advances in Multiscale Modeling and Simulation of BiomoleculesEnhanced Sampling Based on Collective Variables
Yong Wang; Ruhong Zhou; Haohao Fu; Wensheng Cai; Christophe Chipot; Xueguang Shao; (2023) 1-22
Chasing collective variables using temporal data-driven strategies
Haochuan Chen; Christophe Chipot;
QRB Discovery (2023) 413 (242-

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