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A Fluorogenic Peptide Cleavage Assay to Screen for Proteolytic Activity: Applications for coronavirus spike protein activation
Published on: January 9, 2019
Drug design targeting the main protease, the Achilles' heel of coronaviruses
Haitao Yang1, Mark Bartlam, Zihe Rao
1National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China.
Abstract:
Coronaviruses (CoVs), a genus containing about 26 known species to date, cause highly prevalent diseases and are often severe or fatal in humans and animals. In 2003, a previously unknown coronavirus was identified to be the etiological agent of a global outbreak of a form of life-threatening pneumonia called severe acute respiratory syndrome (SARS). No efficacious therapy is currently available, and vaccines and drugs are under development to prevent SARS-CoV infection in many countries. The CoV main protease (M(pro)), which plays a pivotal role in viral gene expression and replication through a highly complex cascade involving the proteolytic processing of replicase polyproteins, is an attractive target for drug design. This review summarizes the recent advances in biological and structural studies, together with development of inhibitors targeting CoV M(pro)s. It is expected that inhibitors targeting CoV M(pro)s could be developed into wide-spectrum antiviral drugs against existing and possible future emerging CoV-associated diseases.
Insights
Coronaviruses cause severe diseases. Targeting the main protease (M(pro)) with new inhibitors offers a promising strategy for developing broad-spectrum antiviral drugs against current and future coronavirus threats.
Area of Science:
- Virology
- Drug Discovery
- Structural Biology
Background:
- Coronaviruses (CoVs) are a genus of viruses causing prevalent and often severe diseases in humans and animals.
- Severe acute respiratory syndrome (SARS) emerged in 2003, caused by a novel coronavirus, highlighting the threat of emerging CoV infections.
- Currently, no effective therapies exist for SARS-CoV, with vaccines and drugs under development.
Purpose of the Study:
- To review recent biological and structural studies of Coronaviruses (CoVs).
- To summarize the development of inhibitors targeting the CoV main protease (M(pro)).
- To explore the potential of M(pro) inhibitors as wide-spectrum antiviral drugs.
Main Methods:
- Literature review of biological and structural studies on CoV M(pro).
- Analysis of inhibitor development strategies targeting CoV M(pro).
- Assessment of M(pro)s role in viral replication and gene expression.
Main Results:
- The CoV main protease (M(pro)) is crucial for viral gene expression and replication.
- Recent biological and structural insights provide a foundation for drug design.
- Several inhibitor development strategies targeting CoV M(pro) have been explored.
Conclusions:
- Inhibitors targeting CoV M(pro) represent a promising therapeutic strategy.
- These inhibitors have the potential to be developed into wide-spectrum antiviral drugs.
- This approach could combat existing and future emerging CoV-associated diseases.
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