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Related Experiment Video

Updated: Oct 26, 2025

Pharmacophore Modeling for Targets with Extensive Ligand Libraries: A Case Study on SARS-CoV-2 Mpro
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Target-Based In Silico Screening for Phytoactive Compounds Targeting SARS-CoV-2.

Yong Zhao1, Yu Tian2, Chenling Pan3

  • 1Beijing Computing Center, Beijing Academy of Science and Technology, 7 Fengxian Road, Beijing, 100094, China. yongzhao168@gmail.com.

Interdisciplinary Sciences, Computational Life Sciences
|July 26, 2021
PubMed
Summary

This study screened 33,765 herbal compounds against SARS-CoV-2 enzymes to find potential COVID-19 treatments. Researchers identified promising natural products that may inhibit viral replication, offering new avenues for drug development.

Keywords:
2’-O-methyltransferaseCOVID-19In silico screeningMain proteaseNatural compoundsPapain-like proteaseRNA-dependent RNA polymerase

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Area of Science:

  • Biochemistry
  • Pharmacology
  • Virology

Background:

  • COVID-19, caused by SARS-CoV-2, poses a significant global health and economic burden.
  • Existing treatments are insufficient, highlighting the need for novel prevention and therapeutic strategies.
  • Herbal remedies show potential but lack clear mechanisms of action against SARS-CoV-2.

Purpose of the Study:

  • To identify natural products from herbal remedies with anti-SARS-CoV-2 activity.
  • To investigate potential antiviral mechanisms by targeting key viral enzymes.
  • To provide a framework for developing new chemoprophylaxis agents against COVID-19.

Main Methods:

  • In silico screening of 33,765 compounds from medicinal plants against four key SARS-CoV-2 enzymes.
  • Target enzymes included Papain-like protease, Main protease, RNA dependent RNA polymerase, and 2 -O-ribose methyltransferase.
  • Compounds were ranked based on binding affinity (free energy of fitting) to enzyme active sites.

Main Results:

  • A list of potential antiviral ingredients from herbal sources targeting SARS-CoV-2 was generated.
  • Analysis included plant origins and pharmacokinetic properties of the top-ranked compounds.
  • Identified compounds show promise for inhibiting critical steps in the SARS-CoV-2 life cycle.

Conclusions:

  • Computational screening identified promising natural compounds from herbal remedies with potential anti-SARS-CoV-2 activity.
  • These compounds may act by inhibiting essential viral enzymes, offering a basis for further drug development.
  • Further research into these natural products could lead to new preventative and therapeutic options for COVID-19.