Adsorption of xenon on a protein arising from the translational motion of solvent molecules

Literature Information

Publication Date 2010-02-24
DOI 10.1039/B921314G
Impact Factor 3.676
Authors

Ryo Akiyama, Yasuhito Karino, Hokuto Obama, Ayako Yoshifuku


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Abstract

A simple method was used to predict binding sites and to calculate the binding free energy for a xenon atom on a protein to determine the importance of the translational motion of water molecules in molecular recognition. We examined xenon bound on myoglobin and on a fragment of ammonium transporter. Despite the simplicity of our method, the predicted binding sites and the experimental results agree very well, and the estimated values of the free energy gain are also reasonable. We discuss the van der Waals picture of molecular recognition between a protein and a small hydrophobic molecule, such as an anesthetic molecule, which gives us a simple physical justification for the idea of a “lock and key” relationship used in conventional structure-based drug design programs.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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