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In Silico Screening of the DrugBank Database to Search for Possible Drugs against SARS-CoV-2.


ABSTRACT: Coronavirus desease 2019 (COVID-19) is responsible for more than 1.80 M deaths worldwide. A Quantitative Structure-Activity Relationships (QSAR) model is developed based on experimental pIC50 values reported for a structurally diverse dataset. A robust model with only five descriptors is found, with values of R2 = 0.897, Q2LOO = 0.854, and Q2ext = 0.876 and complying with all the parameters established in the validation Tropsha's test. The analysis of the applicability domain (AD) reveals coverage of about 90% for the external test set. Docking and molecular dynamic analysis are performed on the three most relevant biological targets for SARS-CoV-2: main protease, papain-like protease, and RNA-dependent RNA polymerase. A screening of the DrugBank database is executed, predicting the pIC50 value of 6664 drugs, which are IN the AD of the model (coverage = 79%). Fifty-seven possible potent anti-COVID-19 candidates with pIC50 values > 6.6 are identified, and based on a pharmacophore modelling analysis, four compounds of this set can be suggested as potent candidates to be potential inhibitors of SARS-CoV-2. Finally, the biological activity of the compounds was related to the frontier molecular orbitals shapes.

SUBMITTER: Cuesta SA 

PROVIDER: S-EPMC7923184 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature

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In Silico Screening of the DrugBank Database to Search for Possible Drugs against SARS-CoV-2.

Cuesta Sebastián A SA   Mora José R JR   Márquez Edgar A EA  

Molecules (Basel, Switzerland) 20210219 4


Coronavirus desease 2019 (COVID-19) is responsible for more than 1.80 M deaths worldwide. A Quantitative Structure-Activity Relationships (QSAR) model is developed based on experimental pIC<sub>50</sub> values reported for a structurally diverse dataset. A robust model with only five descriptors is found, with values of R<sup>2</sup> = 0.897, Q<sup>2</sup><sub>LOO</sub> = 0.854, and Q<sup>2</sup><sub>ext</sub> = 0.876 and complying with all the parameters established in the validation Tropsha's  ...[more]

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