Fragment Molecular Orbital Based Interaction Analyses on COVID-19 Main Protease - Inhibitor N3 Complex (PDB ID: 6LU7)

Ryo Hatada, Koji Okuwaki, Yuji Mochizuki, Yuma Handa, Kaori Fukuzawa, Yuto Komeiji, Yoshio Okiyama, Shigenori Tanaka

研究成果: Article査読

32 被引用数 (Scopus)

抄録

The worldwide spread of COVID-19 (new coronavirus found in 2019) is an emergent issue to be tackled. In fact, a great amount of works in various fields have been made in a rather short period. Here, we report a fragment molecular orbital (FMO) based interaction analysis on a complex between the SARS-CoV-2 main protease (Mpro) and its peptide-like inhibitor N3 (PDB ID: 6LU7). The target inhibitor molecule was segmented into five fragments in order to capture site specific interactions with amino acid residues of the protease. The interaction energies were decomposed into several contributions, and then the characteristics of hydrogen bonding and dispersion stabilization were made clear. Furthermore, the hydration effect was incorporated by the Poisson-Boltzmann (PB) scheme. From the present FMO study, His41, His163, His164, and Glu166 were found to be the most important amino acid residues of Mpro in interacting with the inhibitor, mainly due to hydrogen bonding. A guideline for optimizations of the inhibitor molecule was suggested as well based on the FMO analysis.

本文言語English
ページ(範囲)3593-3602
ページ数10
ジャーナルJournal of chemical information and modeling
60
7
DOI
出版ステータスPublished - 2020 7 27
外部発表はい

ASJC Scopus subject areas

  • 化学 (全般)
  • 化学工学(全般)
  • コンピュータ サイエンスの応用
  • 図書館情報学

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