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Updated: Aug 19, 2026

Structure and Coordination Determination of Peptide-metal Complexes Using 1D and 2D 1H NMR
Published on: December 16, 2013
Topological properties of the energy landscape of small peptides
Lorenzo Bongini1, Aldo Rampioni
1Cell and Molecular Biology Department, Karolinska Institute, P.O. Box 285, SE-171 77 Stockholm, Sweden.
Abstract:
In several works it has been shown that the interplay between short range and long range interactions, mimicking the hydrophobic effect, leads to the formation of the typical secondary structures in proteins, alpha-helices and beta-sheets. In this work we study in detail how the general properties of the energy landscape emerge in a model that presents both components. In this regard it proves useful a sort of perturbative approach. In our model many features of the energy landscape in absence of long range interaction can be determined analytically. The comparison between the energy landscape of this reduced model to that of the complete model gives interesting insight on the role of long range interactions.
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