Accelerating QM/MM Free Energy Computations via Intramolecular Force Matching.
Accelerating QM/MM Free Energy Computations via Intramolecular Force Matching.
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DOI:
10.1021/acs.jctc.8b00517
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发表时间:
2018-12-11
影响因子:
5.5
通讯作者:
Woodcock HL
中科院分区:
文献类型:
--
作者:
Hudson PS;Boresch S;Rogers DM;Woodcock HL
The calculation of free energy differences between levels of theory has numerous potential pitfalls. Chief amongst them is the lack of overlap, i.e., ensembles generated at one level of theory (e.g., “low”) not being good approximations of ensembles at the other (e.g., “high”). Numerous strategies have been devised to mitigate this issue. However, the most straight-forward approach is to ensure that the “low” level ensemble more closely resembles that of the “high”. Ideally, this is done without increasing computational cost. Herein, we demonstrate that by reparameterizing classical intramolecular potentials to reproduce high level forces (i.e., force matching) configurational overlap between a “low” (i.e., classical) and “high” (i.e., quantum) level can be significantly improved. This procedure is validated on two test cases and results in vastly improved convergence of free energy simulations.
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影响因子:
4.1
作者:
BENNETT, CH
通讯作者:
BENNETT, CH
影响因子:
5.7
作者:
Hudson, Phillip S.;Woodcock, H. Lee;Boresch, Stefan
通讯作者:
Boresch, Stefan
影响因子:
4.4
作者:
Izvekov, S;Parrinello, M;Voth, GA
通讯作者:
Voth, GA
影响因子:
1.7
作者:
Boresch, Stefan;Woodcock, H. Lee
通讯作者:
Woodcock, H. Lee
影响因子:
2.4
作者:
Crooks, GE
通讯作者:
Crooks, GE