Temperature dependence of protein dynamics simulated with three different water models

Glass, D. C., Krishnan, M., Nutt, D. R. and Smith, J. C. (2010) Temperature dependence of protein dynamics simulated with three different water models. Journal of Chemical Theory and Computation, 6 (4). pp. 1390-1400. ISSN 1549-9618 doi: 10.1021/ct9006508

Abstract/Summary

The effect of variation of the water model on the temperature dependence of protein and hydration water dynamics is examined by performing molecular dynamics simulations of myoglobin with the TIP3P, TIP4P, and TIP5P water models and the CHARMM protein force field at temperatures between 20 and 300 K. The atomic mean-square displacements, solvent reorientational relaxation times, pair angular correlations between surface water molecules, and time-averaged structures of the protein are all found to be similar, and the protein dynamical transition is described almost indistinguishably for the three water potentials. The results provide evidence that for some purposes changing the water model in protein simulations without a loss of accuracy may be possible.

Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/18176
Identification Number/DOI	10.1021/ct9006508
Refereed	Yes
Divisions	Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
Publisher	American Chemical Society
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