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Solvation model dependency of helix-coil transition in polyalanine

Y. Peng, U. H. E. Hansmann

physics.bio-pharXiv:physics/0202034

Abstract

Helix-coil transitions in poly-alanine molecules of length 10 are studied by multicanonical Monte Carlo simulations. The solvation effects are included by either a distance-dependent dielectric permittivity or by a term that is proportional to the solvent-accessible surface area of the peptide. We found a strong dependence of the characteristics of the helix-coil transition from the details of the solvation model.

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