Fedorov, Maxim V. and Goodman, Jonathan M. and Schumm, Stephan (2007) Solvent effects and hydration of a tripeptide in sodium halide aqueous solutions: an in silico study. Physical Chemistry Chemical Physics, 9 (40). pp. 5423-5435. ISSN 1463-9076Full text not available in this repository. (Request a copy from the Strathclyde author)
In this work we are trying to gain insight into the mechanisms of ion-protein interactions in aqueous media at the molecular scale through fully atomistic molecular dynamics simulations. We present a systematic molecular simulation study of interactions of sodium and halide ions with a trialanine peptide in aqueous sodium halide solutions with different salts concentrations ( 0.20, 0.50, 1.0 and 2.0 M). Each simulation covers more than fifty nanoseconds to ensure the convergence of the results and to enable a proper determination of the tripeptide-ion interactions through the potentials of mean force. Changes in ion densities in the vicinity of different peptide groups are analysed and implications for the tripeptide conformations are discussed.
|Keywords:||2-dimensional vibrational spectroscopy, molecular dynamics, electrolyte-solutions, solvation dynamics, hofmeister series, protein hydration, Physics, Physics and Astronomy(all), Physical and Theoretical Chemistry|
|Subjects:||Science > Physics|
|Department:||Faculty of Science > Physics|
|Depositing user:||Pure Administrator|
|Date Deposited:||08 Nov 2011 11:49|
|Last modified:||04 May 2016 20:47|