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Rewriting the viral script: post-translational modifications orchestrating SARS-CoV-2 pathogenesis and immune evasion
Jie Qu1, Minglong Liu1, Chen Zhou2
1Department of Cadre Ward, The First Hospital of Jilin University, Changchun, China.
SARS-CoV-2 uses post-translational modifications (PTMs) to control host cells and infection. Understanding these PTMs offers new therapeutic targets for COVID-19 and future viral threats.
Area of Science:
- Virology
- Molecular Biology
- Biochemistry
Background:
- SARS-CoV-2 infection involves complex virus-host interactions.
- Post-translational modifications (PTMs) are increasingly recognized as key regulators of viral pathogenesis.
- The full scope of PTMs in SARS-CoV-2 infection is not yet completely understood.
Purpose of the Study:
- To provide a comprehensive synthesis of SARS-CoV-2 pathogenesis centered on PTMs.
- To detail the roles of specific PTMs (phosphorylation, ubiquitination, SUMOylation, etc.) in virus-host interplay.
- To identify potential therapeutic targets for host-directed antiviral strategies.
Main Methods:
- Literature synthesis and review of PTMs in SARS-CoV-2 infection.
- Analysis of mechanistic roles of individual PTMs and their crosstalk.
- Exploration of computational tools for PTM site prediction.
Main Results:
- Specific PTMs like phosphorylation, ubiquitination, and SUMOylation critically modulate viral protein function, host signaling, and immune evasion.
- Higher-order regulatory circuits and crosstalk among PTMs shape the infection dynamics.
- Shared enzymatic nodes targeted by PTMs present opportunities for host-directed therapies.
Conclusions:
- PTMs are central regulators of SARS-CoV-2 fitness and host vulnerability, not just passive bystanders.
- Targeting PTM pathways offers promising therapeutic avenues against SARS-CoV-2.
- This PTM-centric framework aids in developing strategies for current and future viral pandemics.
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