In this paper, a method of simulating the docking of small flexible ligands to flexible receptors in water is reported. The method is based on molecular dynamics simulations and is an extension of an algorithm previously reported by Di Nola et al. (Di Nola et al., Proteins 1994;19:174-182). The meth
A hybrid method of molecular dynamics and harmonic dynamics for docking of flexible ligand to flexible receptor
✍ Scribed by Rie Tatsumi; Yoshifumi Fukunishi; Haruki Nakamura
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 708 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0192-8651
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✦ Synopsis
Abstract
We have developed a new docking method to consider receptor flexibility, a hybrid method of molecular dynamics and harmonic dynamics. The global motions of the whole receptor were approximately introduced into those of the receptor in the docking simulation as harmonic dynamics. On the other hand, the local flexibility of the side chains was also considered by conventional molecular dynamics. We confirmed that this new method can reproduce the fluctuations of the whole receptor by making a comparison of the directions and amplitudes of the global fluctuations. Then this method was applied to the docking of HIV‐1 protease and its ligand. As a result, we observed a docking process where the ligand enters into the binding pocket well, which implies that this method is effective enough to reproduce a molecular complex formation. © 2004 Wiley Periodicals, Inc. J Comput Chem 25: 1995–2005, 2004
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