Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 131, Issue 11, Pages 3810-+Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja8087295
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Funding
- EMBO
- Leverhuhne Trust
- Royal Society
- ICREA Funding Source: Custom
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The dynamics of proteins plays a central role in their activity, including enzymatic catalysis and allosteric communication. Many advances have been made in recent years in the characterization of the equilibrium fluctuations of proteins through experimental and computational methods. We present evidence that the use of molecular dynamics simulations with ensemble-averaged structural restraints derived from nuclear magnetic resonance spectroscopy enables the determination of ensembles of structures representing the equilibrium populations of conformations explored during the thermal fluctuations of proteins. We obtained these results by using residual dipolar couplings to characterize the dynamics of ubiquitin and to derive its free-energy landscape under native conditions.
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