Dresden 2011 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
DY: Fachverband Dynamik und Statistische Physik
DY 28: Statistical Physics far from Equilibrium
DY 28.8: Talk
Thursday, March 17, 2011, 12:15–12:30, HÜL 186
(contribution withdrawn) The influence of temperature gradients on protein folding — •Bernhard Reuter1, Pedro Ojeda-May2, and Martin E. Garcia1 — 1Universität Kassel, Fachbereich Naturwissenschaften, Institut für Theoretische Physik, Heinrich-Plett-Straße 40, 34132 Kassel, Germany — 2Institute for Computational Physics, Universität Stuttgart, Pfaffenwaldring 27, 70569 Stuttgart, Germany
Using Monte Carlo techniques in the framework of the lattice model we addressed the folding of proteins under extreme temperature gradients.
This analysis is inspired by the recent work of Zia [Zia et al., EPL, 89 (2010) 50001] in which a 2D Ising model with two different temperature regions was studied and the presence of persistent currents at the interface between the temperature regions was observed. The relevant fact is that no gravity and no shear forces are necessary to induce those nonequilibrium effects but only the temperature gradient.
In the present work we aim at determining if temperature gradients are also capable of inducing nonequilibrium patterns in more sophisticated models such as proteins in a lattice. We analyze the influence of the magnitude of the temperature difference on the attained protein conformations. Also we compare the so obtained structures with those of the thermodynamic equilibrium.