2015
DOI: 10.1021/ct500894k
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Biasing Potential Replica Exchange Multisite λ-Dynamics for Efficient Free Energy Calculations

Abstract: Traditional free energy calculation methods are well known for their drawbacks in scalability and speed in converging results particularly for calculations with large perturbations. In the present work, we report on the development of biasing potential replica exchange multi-site λ-dynamics (BP-REX MSλD), which is a free energy method that is capable of performing simultaneous alchemical free energy transformations, including perturbations between flexible moieties. BP-REX MSλD and the original MSλD are applie… Show more

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Cited by 33 publications
(90 citation statements)
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“…However, how would we transform between all the different amino acids in a single simulation? A few researchers have designed thermodynamic paths connecting multiple molecules through multidimensional paths [51,52], shared volume methods [49,50], and iteratively updating the thermodynamic path [91,103,104]. The researchers implementing these methods have been able to generate free energy differences for 2 to 10 3 structurally similar molecules, with more theoretically possible [50].…”
Section: Current Limitations In Simulation-based Estimates Of the Frementioning
confidence: 99%
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“…However, how would we transform between all the different amino acids in a single simulation? A few researchers have designed thermodynamic paths connecting multiple molecules through multidimensional paths [51,52], shared volume methods [49,50], and iteratively updating the thermodynamic path [91,103,104]. The researchers implementing these methods have been able to generate free energy differences for 2 to 10 3 structurally similar molecules, with more theoretically possible [50].…”
Section: Current Limitations In Simulation-based Estimates Of the Frementioning
confidence: 99%
“…We propose moves through λ-dynamics [51,52,202] where both Cartesian coordinates, and chemical coordinates are updated at the same time. Each λ variable is assigned a fictitious mass and is subject to a Hamiltonian of…”
Section: Chemical Sampling With λ-Dynamicsmentioning
confidence: 99%
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