ArticleJournal of chemical theory and computation2016
Ambient-Potential Composite Ewald Method for ab Initio Quantum Mechanical/Molecular Mechanical Molecular Dynamics Simulation.
Article in Journal of chemical theory and computation, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.
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Who cites it
33 citing papers in PubMed.
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- Accelerating molecular dynamics simulations using fast Ewald summation with prolates.Nature communications · 2026Article
- Accelerating Quantum Mechanical/Molecular Mechanical (QM/MM) Simulations with Stochastic Iso-Kinetic Nosé-Hoover Multiple Time Step Integrator in CHARMM.The journal of physical chemistry. B · 2026Article
- Transferability of MACE Graph Neural Network for Range Corrected Δ-Machine Learning Potential QM/MM Applications.The journal of physical chemistry. B · 2025Article
- Aliphatic Polyester Recognition and Reactivity at the Active Cleft of a Fungal Cutinase.Journal of chemical information and modeling · 2025Article
- High-performance QM/MM Enhanced Sampling Molecular Dynamics Simulations with GENESIS SPDYN and QSimulate-QM.Journal of chemical theory and computation · 2025Article
- Neuroprotective Assessment of Nutraceutical (Betanin) in Neuroblastoma Cell Line SHSY-5Y: An in-Vitro and in-Silico Approach.Neurochemical research · 2024Article
- Software Infrastructure for Next-Generation QM/MM-ΔMLP Force Fields.The journal of physical chemistry. B · 2024Article
- Electronic and Nuclear Quantum Effects on Proton Transfer Reactions of Guanine-Thymine (G-T) Mispairs Using Combined Quantum Mechanical/Molecular Mechanical and Machine Learning Potentials.Molecules (Basel, Switzerland) · 2024Article
- AmberTools.Journal of chemical information and modeling · 2023Article
- DeePMD-kit v2: A software package for deep potential models.The Journal of chemical physics · 2023Article
- Catalytic mechanism and pH dependence of a methyltransferase ribozyme (MTR1) from computational enzymology.Nucleic acids research · 2023Article
- Modern semiempirical electronic structure methods and machine learning potentials for drug discovery: Conformers, tautomers, and protonation states.The Journal of chemical physics · 2023Article
- QDπ: A Quantum Deep Potential Interaction Model for Drug Discovery.Journal of chemical theory and computation · 2023Article
- Multireference Generalization of the Weighted Thermodynamic Perturbation Method.The journal of physical chemistry. A · 2022Article
- Article
- Combined QM/MM, Machine Learning Path Integral Approach to Compute Free Energy Profiles and Kinetic Isotope Effects in RNA Cleavage Reactions.Journal of chemical theory and computation · 2022Article
- Development of Range-Corrected Deep Learning Potentials for Fast, Accurate Quantum Mechanical/Molecular Mechanical Simulations of Chemical Reactions in Solution.Journal of chemical theory and computation · 2021Article
- Extension of the Variational Free Energy Profile and Multistate Bennett Acceptance Ratio Methods for High-Dimensional Potential of Mean Force Profile Analysis.The journal of physical chemistry. A · 2021Article
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Authors and funding
2 authors.
Funding
Abstract
A new approach for performing Particle Mesh Ewald in ab initio quantum mechanical/molecular mechanical (QM/MM) simulations with extended atomic orbital basis sets is presented. The new approach, the Ambient-Potential Composite Ewald (CEw) method, does not perform the QM/MM interaction with Mulliken charges nor electrostatically fit charges. Instead the nuclei and electron density interact directly with the MM environment, but in a manner that avoids the use of dense Fourier transform grids. By performing the electrostatics with the underlying QM density, the CEw method avoids self-consistent field instabilities that have been encountered with simple charge mapping procedures. Potential of mean force (PMF) profiles of the p-nitrophenyl phosphate dissociation reaction in explicit solvent are computed from PBE0/6-31G* QM/MM molecular dynamics simulations with various electrostatic protocols. The CEw profiles are shown to be stable with respect to real-space Ewald cutoff, whereas the PMFs computed from truncated and switched electrostatics produce artifacts. PBE0/6-311G**, AM1/d-PhoT, and DFTB2 QM/MM simulations are performed to generate two-dimensional PMF profiles of the phosphoryl transesterification reactions with ethoxide and phenoxide leaving groups. The semiempirical models incorrectly produce a concerted ethoxide mechanism, whereas PBE0 correctly produces a stepwise mechanism. The ab initio reaction barriers agree more closely to experiment than the semiempirical models. The failure of Mulliken-charge QM/MM-Ewald is analyzed.
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