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CSAW: a dynamical model of protein folding

2006/01/12 by Kerson Huang, Huang, Kerson
Agricultural and Biological Sciences · Biochemistry, Genetics and Molecular Biology · Materials Science · Physics and Astronomy · #Biological Physics (physics.bio-ph) #Enzyme Structure and Function #FOS: Biological sciences #FOS: Physical sciences #Protein Structure and Dynamics #Proteins in Food Systems #Quantitative Methods (q-bio.QM) #Soft Condensed Matter (cond-mat.soft) #Statistical Mechanics (cond-mat.stat-mech) #cond-mat.soft #cond-mat.stat-mech #physics.bio-ph #q-bio.QM

paper · pdf · doi:10.48550/arxiv.cond-mat/0601244

16 figures

arxiv created 2006/01/12 · openalex publication_date 2006/01/12 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

CSAW (conditioned self-avoiding walk) is a model of protein folding that combines SAW (self-avoiding walk) with Monte-Carlo. It simulates the Brownian motion of a chain molecule in the presence of interactions, both among chain residues, and with the environment. In a first model that includes the hydrophobic effect and hydrogen bonding, a chain of 30 residues folds into a native state with stable secondary and tertiary structures. The process starts with a rapid collapse into an intermediate "molten globule", which slowly decays into the native state afer a relatively long quiescent period. The behavior of the radius of gyration mimics experimental data.

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