Abstract
In order to apply the fragment molecular orbital (FMO) method to practical drug discovery research, what procedure should be used? This chapter summarizes the preliminary knowledge necessary for applying the FMO method to the field of drug discovery. First, as a pretreatment of calculation, preparation of structure, fragmentation, and selection of the theoretical method are explained. Then, as to how to evaluate the binding properties of ligand from the obtained results of the FMO calculation, the evaluation method using binding free energy, interaction energy, and its energy components will be explained. Further, various physical quantities obtained from the FMO calculation such as charge distribution, electrostatic potential, and electron density distribution are introduced. Then, how to interpret these values will be explained.
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Acknowledgments
The authors would like to thank Prof. Yuji Mochizuki and Prof. Shigenori Tanaka for ongoing discussions on FMO. A part of this research was done in activities of the FMO drug design consortium (FMODD). PIEDA analysis was carried out by using MIZUHO/BioStation Viewer. This research was partially supported by Platform Project for Supporting Drug Discovery and Life Science Research (Basis for Supporting Innovative Drug Discovery and Life Science Research (BINDS)) from AMED under Grant Number JP20am0101113. C.W. acknowledges the JST PRESTO Grant Number JPMJPR18GD, Japan.
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Fukuzawa, K., Watanabe, C., Okiyama, Y., Nakano, T. (2021). How to Perform FMO Calculation in Drug Discovery. In: Mochizuki, Y., Tanaka, S., Fukuzawa, K. (eds) Recent Advances of the Fragment Molecular Orbital Method. Springer, Singapore. https://doi.org/10.1007/978-981-15-9235-5_7
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