Proceedings of the Conference on Nonlinear Coherent Structures in Physics and Biology,
Heriot-Watt University, Edinburgh, July 95

The Davydov soliton: lessons from dimers and N-mers.

L. Cruzeiro-Hansson

Crystallography Department, Birkbeck College,
London, WC1E 7HX, U.K.


The Davydov model describes how energy can be transferred along protein alpha-helices in the form of a vibration excitation of the peptide groups called amide I. In the Davydov model the amide I vibration interacts with the phonon modes of the alpha-helix and solitons can form. An important, and still unanswered question is that of the thermal lifetime of the Davydov soliton at biological temperatures. A brief summary of the field will be presented, with particular emphasis on the behaviour of the system at finite temperature. Results from quantum dynamics at finite temperature will be shown.

Conference paper.


Last modified Mon Apr 8 16:24:54 GB-Eire 1996 (DBD)