Abstract
Ataxia telangiectasia-mutated and Rad3-related (ATR) protein kinase is an attractive anticancer target. In this study, comparative molecular field analysis (CoMFA) and comparative molecular similarity index analysis (CoMSIA) were performed on a series of aminopyrazine ATR inhibitors. The models generated by CoMFA had a cross-validated coefficient (q2) of 0.752 and a regression coefficient (r2) of 0.947. The CoMSIA models had a q2 of 0.728 and an r2 of 0.936. The reasonable quantitative structure-activity relationship model showed robust predictive ability. The contour map provided guidelines for building novel virtual compounds based on compound NO.40. In addition, the 3D structure of ATR was modeled by homology modeling. Molecular dynamic simulations were employed to optimize the structure. The docking results offered insights into the interactions between the inhibitors and the active site for potent analysis. This study provides useful guidance for the discovery of more potent compounds.
Keywords: ATR inhibitor, 3D-QSAR, CoMFA, CoMSIA, docking, homology modeling, molecular design.
Current Computer-Aided Drug Design
Title:3D-QSAR Analysis on ATR Protein Kinase Inhibitors Using CoMFA and CoMSIA
Volume: 10 Issue: 4
Author(s): Xiurong Li, Mao Shu, Yuanqiang Wang, Rui Yu, Shuang Yao and Zhihua Lin
Affiliation:
Keywords: ATR inhibitor, 3D-QSAR, CoMFA, CoMSIA, docking, homology modeling, molecular design.
Abstract: Ataxia telangiectasia-mutated and Rad3-related (ATR) protein kinase is an attractive anticancer target. In this study, comparative molecular field analysis (CoMFA) and comparative molecular similarity index analysis (CoMSIA) were performed on a series of aminopyrazine ATR inhibitors. The models generated by CoMFA had a cross-validated coefficient (q2) of 0.752 and a regression coefficient (r2) of 0.947. The CoMSIA models had a q2 of 0.728 and an r2 of 0.936. The reasonable quantitative structure-activity relationship model showed robust predictive ability. The contour map provided guidelines for building novel virtual compounds based on compound NO.40. In addition, the 3D structure of ATR was modeled by homology modeling. Molecular dynamic simulations were employed to optimize the structure. The docking results offered insights into the interactions between the inhibitors and the active site for potent analysis. This study provides useful guidance for the discovery of more potent compounds.
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Cite this article as:
Li Xiurong, Shu Mao, Wang Yuanqiang, Yu Rui, Yao Shuang and Lin Zhihua, 3D-QSAR Analysis on ATR Protein Kinase Inhibitors Using CoMFA and CoMSIA, Current Computer-Aided Drug Design 2014; 10 (4) . https://dx.doi.org/10.2174/1573409910666140701094853
DOI https://dx.doi.org/10.2174/1573409910666140701094853 |
Print ISSN 1573-4099 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-6697 |
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