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Cited by 411

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Martini Coarse-Grained Force Field: Extension to Carbohydrates

López, Cesar A., Rzepiela, Andrzej J., de Vries, Alex H., Dijkhuizen, Lubbert, Hünenberger, Philippe H., Marrink, Siewert J.·2009·Journal of Chemical Theory and Computation

Abstract

We present an extension of the Martini coarse-grained force field to carbohydrates. The parametrization follows the same philosophy as was used previously for lipids and proteins, focusing on the reproduction of partitioning free energies of small compounds between polar and nonpolar phases. The carbohydrate building blocks considered are the monosaccharides glucose and fructose and the disaccharides sucrose, trehalose, maltose, cellobiose, nigerose, laminarabiose, kojibiose, and sophorose. Bonded parameters for these saccharides are optimized by comparison to conformations sampled with an atomistic force field, in particular with respect to the representation of the most populated rotameric state for the glycosidic bond. Application of the new coarse-grained carbohydrate model to the oligosaccharides amylose and Curdlan shows a preservation of the main structural properties with 3 orders of magnitude more efficient sampling than the atomistic counterpart. Finally, we investigate the cryo- and anhydro-protective effect of glucose and trehalose on a lipid bilayer and find a strong decrease of the melting temperature, in good agreement with both experimental findings and atomistic simulation studies.

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Metadata

Authors
López, C. A., Rzepiela, A. J., de Vries, A. H., Dijkhuizen, L., Hünenberger, P. H., & Marrink, S. J.
Venue
Journal of Chemical Theory and Computation
Published
2009-10-30
Volume
5
Issue
12
Pages
3195-3210
ISSN
  • 1549-9618 (ISSN-L)
  • 1549-9626
OpenAlex
W2119806687
Cited by
411
References
50
FWCI
6.60
Type
journal article
Language
en
Open access
closed

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