Cooperative dynamics of proteins unraveled by network models

Wiley Interdisciplinary Reviews. Computational Molecular Science
Eran EyalI Bahar

Abstract

Recent years have seen a significant increase in the number of computational studies that adopted network models for investigating biomolecular systems dynamics and interactions. In particular, elastic network models have proven useful in elucidating the dynamics and allosteric signaling mechanisms of proteins and their complexes. Here we present an overview of two most widely used elastic network models, the Gaussian Network Model (GNM) and Anisotropic Network Model (ANM). We illustrate their use in (i) explaining the anisotropic response of proteins observed in external pulling experiments, (ii) identifying residues that possess high allosteric potentials, and demonstrating in this context the propensity of catalytic sites and metal-binding sites for enabling efficient signal transduction, and (iii) assisting in structure refinement, molecular replacement and comparative modeling of ligand-bound forms via efficient sampling of energetically favored conformers.

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Citations

Jan 9, 2015·Bioinformatics·Eran EyalIvet Bahar
Nov 13, 2012·Journal of Chemical Theory and Computation·Pedro SfrisoModesto Orozco

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