Journal
JOURNAL OF CHEMICAL PHYSICS
Volume 152, Issue 2, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.5142457
Keywords
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Funding
- National Science Foundation [CNS-09-58854]
- National Institutes of Health [1R01GM123296]
- NIH Research Resource Computer Cluster Grant [S10-OD020095]
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In the last decade, advances in molecular dynamics (MD) and Markov State Model (MSM) methodologies have made possible accurate and efficient estimation of kinetic rates and reactive pathways for complex biomolecular dynamics occurring on slow time scales. A promising approach to enhanced sampling of MSMs is to use adaptive methods, in which new MD trajectories are seeded preferentially from previously identified states. Here, we investigate the performance of various MSM estimators applied to reseeding trajectory data, for both a simple 1D free energy landscape and mini-protein folding MSMs ofWWdomain and NTL9(1-39). Our results reveal the practical challenges of reseeding simulations and suggest a simple way to reweight seeding trajectory data to better estimate both thermodynamic and kinetic quantities. Published under license by AIP Publishing.
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