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Please use this identifier to cite or link to this item: http://repositorio.ufba.br/ri/handle/ri/5758

Title: Self-affine analysis of protein energy
Other Titles: Physica A-Statistical Mechanics And Its Applications
Authors: Figueirêdo, P. H.
Moret, M. A.
Pascutti, P. G.
Nogueira Júnior, E.
Coutinho, Sérgio
Keywords: Protein packing;Self-affinity
Issue Date: 2010
Abstract: We study the time series of the total energy of polypeptides and proteins. These time series were generated by molecular dynamics methods and analyzed by applying detrended fluctuation analysis to estimate the long-range power-law correlation, i.e. to measure scaling exponents . Such exponents were calculated for all systems and their values follow environment conditions, i.e., they are temperature dependent and also, in a continuum medium approach, vary according to the dielectric constants (we simulated D 2 and D 80). The procedure was applied to investigate polyalanines, and other realistic models of proteins (Insect Defensin A and Hemoglobin). The present findings exhibit results that are consistent with previous ones obtained by other methodologies.
Description: Acesso restrito: Texto completo. p. 2682-2686
URI: http://www.repositorio.ufba.br/ri/handle/ri/5758
ISSN: 0378-4371
Appears in Collections:Artigos Publicados em Periódicos (FIS)

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