A simple coarse-grained model for interacting protein complex

作者:Kawaguchi Kazutomo*; Nakagawa Satoshi; Kinoshita Shogo; Wada Makoto; Saito Hiroaki; Nagao Hidemi
来源:Molecular Physics, 2017, 115(5): 587-597.
DOI:10.1080/00268976.2016.1234652

摘要

We present a simple coarse-grained model in which each amino acid residue is represented by one coarse-grained particle for interacting protein complex. In order to determine the coarse-grained potential function of the interaction between amino acid residues, free energy profile as a function of the distance between amino acid side chains is investigated by using all-atom molecular dynamics simulations with thermodynamic integration method. The Langevin dynamics simulation with G-like model and our coarse-grained model reproduces homotetramer complex structure of GCN4-pLI and shows that interaction between hydrophobic amino acid residues promote the association of GCN4-pLI monomers.

  • 出版日期2017