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The Life of SARS-CoV-2 Inside Cells: Replication-Transcription Complex Assembly and Function
Zhiyong Lou1, Zihe Rao1,2,3,4,5,6
1Ministry of Education Key Laboratory of Protein Science, School of Medicine, Tsinghua University, Beijing, China; email: louzy@mail.tsinghua.edu.cn, raozh@tsinghua.edu.cn.
Annual Review of Biochemistry
|June 21, 2022
Summary
This review details coronavirus nonstructural proteins and replication-transcription complexes (RTCs). Understanding these conserved viral targets is key to developing new antivirals against COVID-19 variants.
Area of Science:
- Virology
- Molecular Biology
- Drug Discovery
Background:
- The COVID-19 pandemic remains a significant global health challenge.
- Emerging SARS-CoV-2 variants pose a threat to existing therapeutics.
- Nonstructural proteins are crucial for viral RNA synthesis and are conserved across variants.
Purpose of the Study:
- To review the structures and functions of coronavirus nonstructural proteins.
- To elucidate the assembly and functions of replication-transcription complexes (RTCs).
- To highlight the potential of nonstructural proteins as targets for novel antiviral development.
Main Methods:
- Literature review of structural and functional studies on coronavirus nonstructural proteins.
- Analysis of research on the assembly and mechanisms of RTCs.
- Synthesis of current knowledge on viral replication and transcription processes.
Main Results:
- Nonstructural proteins form the core of RTCs, essential for viral RNA replication.
- These proteins exhibit conserved structures and functions across SARS-CoV-2 variants.
- Understanding their molecular mechanisms provides insights into viral pathogenesis.
Conclusions:
- Nonstructural proteins and RTCs are critical and conserved targets for antiviral strategies.
- Targeting these components can lead to broad-spectrum antivirals effective against current and future variants.
- Further research into these viral machinery components is vital for pandemic preparedness.
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