PMID- 33769814 OWN - NLM STAT- MEDLINE DCOM- 20210720 LR - 20220414 IS - 1549-9626 (Electronic) IS - 1549-9618 (Print) IS - 1549-9618 (Linking) VI - 17 IP - 4 DP - 2021 Apr 13 TI - Implicit Solvents for the Polarizable Atomic Multipole AMOEBA Force Field. PG - 2323-2341 LID - 10.1021/acs.jctc.0c01286 [doi] AB - Computational protein design, ab initio protein/RNA folding, and protein-ligand screening can be too computationally demanding for explicit treatment of solvent. For these applications, implicit solvent offers a compelling alternative, which we describe here for the polarizable atomic multipole AMOEBA force field based on three treatments of continuum electrostatics: numerical solutions to the nonlinear and linearized versions of the Poisson-Boltzmann equation (PBE), the domain-decomposition conductor-like screening model (ddCOSMO) approximation to the PBE, and the analytic generalized Kirkwood (GK) approximation. The continuum electrostatics models are combined with a nonpolar estimator based on novel cavitation and dispersion terms. Electrostatic model parameters are numerically optimized using a least-squares style target function based on a library of 103 small-molecule solvation free energy differences. Mean signed errors for the adaptive Poisson-Boltzmann solver (APBS), ddCOSMO, and GK models are 0.05, 0.00, and 0.00 kcal/mol, respectively, while the mean unsigned errors are 0.70, 0.63, and 0.58 kcal/mol, respectively. Validation of the electrostatic response of the resulting implicit solvents, which are available in the Tinker (or Tinker-HP), OpenMM, and Force Field X software packages, is based on comparisons to explicit solvent simulations for a series of proteins and nucleic acids. Overall, the emergence of performative implicit solvent models for polarizable force fields opens the door to their use for folding and design applications. FAU - Corrigan, Rae A AU - Corrigan RA AUID- ORCID: 0000-0003-3628-9347 AD - Roy J Carver Department of Biomedical Engineering, University of Iowa, Iowa City, Iowa 52242, United States. FAU - Qi, Guowei AU - Qi G AD - Department of Biochemistry, University of Iowa, Iowa City, Iowa 52242, United States. FAU - Thiel, Andrew C AU - Thiel AC AD - Roy J Carver Department of Biomedical Engineering, University of Iowa, Iowa City, Iowa 52242, United States. FAU - Lynn, Jack R AU - Lynn JR AD - Roy J Carver Department of Biomedical Engineering, University of Iowa, Iowa City, Iowa 52242, United States. FAU - Walker, Brandon D AU - Walker BD AD - Department of Biomedical Engineering, University of Texas in Austin, Austin, Texas 78712, United States. FAU - Casavant, Thomas L AU - Casavant TL AD - Roy J Carver Department of Biomedical Engineering, University of Iowa, Iowa City, Iowa 52242, United States. FAU - Lagardere, Louis AU - Lagardere L AD - Department of Chemistry, Sorbonne Universite, F-75005 Paris, France. FAU - Piquemal, Jean-Philip AU - Piquemal JP AUID- ORCID: 0000-0001-6615-9426 AD - Department of Chemistry, Sorbonne Universite, F-75005 Paris, France. FAU - Ponder, Jay W AU - Ponder JW AUID- ORCID: 0000-0001-5450-9230 AD - Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri 63130, United States. FAU - Ren, Pengyu AU - Ren P AUID- ORCID: 0000-0002-5613-1910 AD - Department of Biomedical Engineering, University of Texas in Austin, Austin, Texas 78712, United States. FAU - Schnieders, Michael J AU - Schnieders MJ AUID- ORCID: 0000-0003-1260-4592 AD - Roy J Carver Department of Biomedical Engineering, University of Iowa, Iowa City, Iowa 52242, United States. AD - Department of Biochemistry, University of Iowa, Iowa City, Iowa 52242, United States. LA - eng GR - R01 DC012049/DC/NIDCD NIH HHS/United States GR - R01 DK110023/DK/NIDDK NIH HHS/United States GR - R01 GM106137/GM/NIGMS NIH HHS/United States GR - R01 GM114237/GM/NIGMS NIH HHS/United States PT - Journal Article DEP - 20210326 PL - United States TA - J Chem Theory Comput JT - Journal of chemical theory and computation JID - 101232704 RN - 0 (Ligands) RN - 0 (Proteins) RN - 0 (Solvents) SB - IM MH - Ligands MH - *Models, Chemical MH - Proteins/*chemistry MH - Solvents/chemistry MH - Static Electricity PMC - PMC8126468 MID - NIHMS1694425 EDAT- 2021/03/27 06:00 MHDA- 2021/07/21 06:00 PMCR- 2022/04/13 CRDT- 2021/03/26 17:12 PHST- 2021/03/27 06:00 [pubmed] PHST- 2021/07/21 06:00 [medline] PHST- 2021/03/26 17:12 [entrez] PHST- 2022/04/13 00:00 [pmc-release] AID - 10.1021/acs.jctc.0c01286 [doi] PST - ppublish SO - J Chem Theory Comput. 2021 Apr 13;17(4):2323-2341. doi: 10.1021/acs.jctc.0c01286. Epub 2021 Mar 26.