English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/7476
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:

Title

Analytical tools for solitons and periodic waves corresponding to phonons on Lennard-Jones lattices in helical proteins

AuthorsD'Ovidio, Francesco; Bohr, Henrik Georg; Lindgaard, Per-Anker
KeywordsSolitons
Lennard-Jones potential
Proteins
Hydrogen bonds
Vibrational modes
Phonons
Microorganisms
Molecular biophysics
Issue Date15-Feb-2005
PublisherAmerican Physical Society
CitationPhysical Review E 71, 026606 (1-9) (2005)
AbstractWe study the propagation of solitons along the hydrogen bonds of an alpha helix. Modeling the hydrogen and peptide bonds with Lennard-Jones potentials, we show that the solitons can appear spontaneously and have long lifetimes. Remarkably, even if no explicit solution is known for the Lennard-Jones potential, the solitons can be characterized analytically with a good quantitative agreement using formulas for a Toda potential with parameters fitted to the Lennard-Jones potential. We also discuss and show the robustness of the family of periodic solutions called cnoidal waves, corresponding to phonons. The soliton phenomena described in the simulations of alpha helices may help to explain recent x-ray experiments on long alpha helices in Rhodopsin where a long lifetime of the vibrational modes has been observed.
Description9 pages, 13 figures.-- PACS nrs.: 05.45.Yv, 87.15.-v.-- PMID: 15783440 [PubMed].
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevE.71.026606
URIhttp://hdl.handle.net/10261/7476
DOIhttp://dx.doi.org/10.1103/PhysRevE.71.026606
ISSN1539-3755
Appears in Collections:(IFISC) Artículos
Files in This Item:
File Description SizeFormat 
PhysRevE_71_026606.pdf203,84 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.