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Molecular insights into aggregates made of amphiphilic Fmoc-tetrapeptides

Lopez-Perez, D. E., Revilla-Lopez, G., Hamley, I. W. and Aleman, C. (2013) Molecular insights into aggregates made of amphiphilic Fmoc-tetrapeptides. Soft Matter, 9 (46). pp. 11021-11032. ISSN 1744-683X

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To link to this item DOI: 10.1039/c3sm51826d

Abstract/Summary

Pre-assembled aggregates made of Fmoc-conjugated RGDS and GRDS peptides, where Fmoc refers to fluorenylmethoxycarbonyl, have been investigated using atomistic molecular dynamics simulations. The structural characteristics of twelve different models involving two sheets packed with the Fmoc-aligned or with the charged side groups oriented face-to-face, each one containing seven explicit peptide molecules arranged in parallel or antiparallel, have been evaluated for each Fmoc-tetrapeptide. Structural criteria have been used to select the preferred assembly for each Fmoc-tetrapeptide. The two peptides have been found to prefer b-sheet assemblies with a parallel configuration under simulated low concentration conditions. Furthermore, the assembly is dominated by the interactions among Fmoc units. The overall results provide a complete atomistic view of the interactions between Fmoc-peptide molecules comprised within the same sheet or in different sheets that was not achieved experimentally.

Item Type:Article
Refereed:Yes
Divisions:Interdisciplinary centres and themes > Chemical Analysis Facility (CAF)
Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
ID Code:35127
Publisher:Royal Society of Chemistry

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