Structure-based inhibitor design and repurposing clinical drugs to target SARS-CoV-2 proteases

Biochem Soc Trans. 2022 Feb 28;50(1):151-165. doi: 10.1042/BST20211180.

Abstract

SARS-CoV-2, the coronavirus responsible for the current COVID-19 pandemic, encodes two proteases, 3CLpro and PLpro, two of the main antiviral research targets. Here we provide an overview of the structures and functions of 3CLpro and PLpro and examine strategies of structure-based drug designing and drug repurposing against these proteases. Rational structure-based drug design enables the generation of potent and target-specific antivirals. Drug repurposing offers an attractive prospect with an accelerated turnaround. Thus far, several protease inhibitors have been identified, and some candidates are undergoing trials that may well prove to be effective antivirals against SARS-CoV-2.

Keywords: 3CLpro; COVID-19; PLpro; SARS-CoV-2; antiviral; proteases.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Antiviral Agents / pharmacology
  • Drug Design
  • Drug Repositioning*
  • Humans
  • Peptide Hydrolases
  • Protease Inhibitors / pharmacology*
  • SARS-CoV-2 / enzymology*
  • Viral Proteins / antagonists & inhibitors*

Substances

  • Antiviral Agents
  • Protease Inhibitors
  • Viral Proteins
  • Peptide Hydrolases