Saito, Hiroaki; Iwayama, Masashi; Mizukami, Taku; Kang, Jiyoung; Tateno, Masaru; Nagao, Hidemi
Molecular dynamics study on binding free energy of Azurin-Cytochrome c551 complex
CHEMICAL PHYSICS LETTERS, 556:297-302, JAN 29 2013

The thermodynamic stability and binding characteristics of Azurin-Cytochrome c551 (AZ/C551) complex in water solvent were investigated by an all-atom molecular dynamics (MD) simulation. Model complexes of AZ/C551 were prepared by protein-protein docking and MD simulations. The total free energy and binding free energy of model AZ/C551 complexes were evaluated using the conformational and solvation energies and entropy terms. The conformational and solvation free energies were found to largely depend on the hydrophilicity/hydrophobicity of the AZ/C551 complex, showing the importance of these characteristics in the thermodynamic stability and in the formation of the AZ/C551 complex. (C) 2012 Elsevier B. V. All rights reserved.

DOI:10.1016/j.cplett.2012.12.016

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