Producción Científica Profesorado

Computational study of the binding mode, action mechanism and potency of pregabalin through molecular docking and quantum mechanical descriptors



Mendoza Huizar, Luis Humberto

2021

LorenacMeneses, Sebastian Cuesta Hoyos, Guillermo Salgado Morán, Patricio Muñoz C., Lorena Gerli Candia, Luis H.Mendoza-Huizar, Assia Belhassanf. Computational study of the binding mode, action mechanism and potency of pregabalin through molecular docking and quantum mechanical descriptors. Computational and Theoretical Chemistry. 2021, 1199, 113200. https://doi.org/10.1016/j.comptc.2021.113200


Abstract


In the present study, we performed a computational study to gain insights on the binding mode and high affinity of pregabalin, its inactive isomer (R-pregabalin) and gabapentin when modulating voltage-gated calcium channels. Quantum chemical descriptors were evaluated at two different levels of theory (?B97XD and B3LYP-D3) for the three molecules. The results show that the three ligands have similar quantum chemical descriptors, suggesting that the affinity is governed by the binding pose and the ability to access the pocket. The binding mode analysis of pregabalin indicates that it is interacting with 12 residues (6 hydrogen bonds) including Arg217, which is key to pregabalin action mechanism. Our results suggest that the electrostatic interactions and the hydrogen bonds between pregabalin and Arg217 could explain its high affinity, highlighting the importance of Arg217 in the pharmacological action.



Producto de Investigación




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