Evidence map›Paper›PMID 37616333›Full record

ArticleJournal of chemical theory and computation2023

Calculations of Absolute Solvation Free Energies with Transformato─Application to the FreeSolv Database Using the CGenFF Force Field.

Johannes Karwounopoulos, Åsmund Kaupang, Marcus Wieder, Stefan Boresch

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Article in Journal of chemical theory and computation, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

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12citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

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3 · Its place in the literature

Who cites it

12 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

4 authors.

Johannes KarwounopoulosFaculty of Chemistry, Institute of Computational Biological Chemistry, University of Vienna, Währingerstr. 17, 1090 Vienna, Austria.ORCID 0000-0002-0172-863X
Åsmund KaupangDepartment of Pharmacy, Section for Pharmaceutical Chemistry, University of Oslo, 0316 Oslo, Norway.ORCID 0000-0003-4376-0774
Marcus WiederDepartment of Pharmaceutical Sciences, Pharmaceutical Chemistry Division, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria.ORCID 0000-0003-2631-8415
Stefan BoreschFaculty of Chemistry, Institute of Computational Biological Chemistry, University of Vienna, Währingerstr. 17, 1090 Vienna, Austria.ORCID 0000-0002-2793-6656

Funding

Design and application ofrobust and efficient QM/MM free energy simulation methods for biomolecular systemsR01GM129519 · NIGMS · UNIVERSITY OF SOUTH FLORIDA · PI WOODCOCK III, HENRY LEE · 2018 to 2025
$1.9M
NIGMS NIH HHS R01 GM129519
6 · The paper itself

Abstract

We recently introduced transformato, an open-source Python package for the automated setup of large-scale calculations of relative solvation and binding free energy differences. Here, we extend the capabilities of transformato to the calculation of absolute solvation free energy differences. After careful validation against the literature results and reference calculations with the PERT module of CHARMM, we used transformato to compute absolute solvation free energies for most molecules in the FreeSolv database (621 out of 642). The force field parameters were obtained with the program cgenff (v2.5.1), which derives missing parameters from the CHARMM general force field (CGenFF v4.6). A long-range correction for the Lennard-Jones interactions was added to all computed solvation free energies. The mean absolute error compared to the experimental data is 1.12 kcal/mol. Our results allow a detailed comparison between the AMBER and CHARMM general force fields and provide a more in-depth understanding of the capabilities and limitations of the CGenFF small molecule parameters.

Identifiers

PMID37616333
PMCPMC10500982

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.