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• W2080602853 abstract "Rho-associated protein kinases (ROCK1 and ROCK2) are promising targets for a number of diseases, including cardiovascular disorders, nervous system diseases, cancers, etc. Recently, we have successfully identified a ROCK1 inhibitor (1) with the triazine core. In order to gain a deeper insight into the microscopic binding of this inhibitor with ROCK1 and design derivatives with improved potency, the interactions between ROCK1 and a series of triazine/pyrimidine-based inhibitors were studied by using an integrated computational protocol that combines molecular docking, molecular dynamics (MD) simulations, binding free energy calculations, and binding energy decomposition analysis. First, three docking protocols, rigid receptor docking, induced fit docking, QM-polarized ligand docking, were used to determine the binding modes of the studied inhibitors in the active site of ROCK1. The results illustrate that rigid receptor docking achieves the best performance to rank the binding affinities of the studied inhibitors. Then, based on the predicted structures from molecular docking, MD simulations and MM/GBSA free energy calculations were employed to determine the dynamic binding process and compare the binding modes of the inhibitors with different activities. The binding free energies predicted by MM/GBSA are in good agreement with the experimental bioactivities, and the analysis of the individual energy terms suggests that the van der Waals interaction is the major driving force for ligand binding. In addition, the residue-inhibitor interaction spectra were obtained by the MM/GBSA free energy decomposition analysis, and the important residues for achieving strong binding were highlighted, which affords important guidance for the rational design of novel ROCK inhibitors. Finally, a variety of derivatives of inhibitor 1 were designed and four of them showed promising potency according to the predictions. We expect that our study can provide significant insight into the development of improved inhibitors of ROCK1." @default.
• W2080602853 created "2016-06-24" @default.
• W2080602853 creator A5028525523 @default.
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• W2080602853 date "2013-01-01" @default.
• W2080602853 modified "2023-10-03" @default.
• W2080602853 title "Discovery and optimization of triazine derivatives as ROCK1 inhibitors: molecular docking, molecular dynamics simulations and free energy calculations" @default.
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• W2080602853 doi "https://doi.org/10.1039/c2mb25408e" @default.
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