Conformation changes and protein folding induced by φ^4 interaction

Details Conformation changes and protein folding induced by φ^4 interaction Conformation changes and protein folding induced by φ^4 interaction

2011-09-28

arxiv.org/abs/1109.6065v1

Physics

Biological Physics

8 pages, Proceeding of the Conference in Honour of Murray Gell-Mann's 80th Birthday : Quantum Mechanics, Elementary Particles,

Scientific paper

10.1142/9789814335614_0047

A model to describe the mechanism of conformational dynamics in protein based on matter interactions using lagrangian approach and imposing certain symmetry breaking is proposed. Both conformation changes of proteins and the injected non-linear sources are represented by the bosonic lagrangian with an additional \phi^4 interaction for the sources. In the model the spring tension of protein representing the internal hydrogen bonds is realized as the interactions between individual amino acids and nonlinear sources. The folding pathway is determined by the strength of nonlinear sources that propagate through the protein backbone. It is also shown that the model reproduces the results in some previous works.

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