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Related Concept Videos

Coronavirus01:29

Coronavirus

Coronaviruses, including the severe acute respiratory syndrome coronavirus (SARS-CoV), are enveloped viruses characterized by their single-stranded, positive-sense RNA genome and helical nucleocapsid structure. The hallmark of these viruses is their club-shaped spike (S) glycoproteins that protrude from the viral envelope, facilitating attachment to host cells. Typically, coronaviruses infect the upper respiratory tract, often causing mild or asymptomatic disease. However, certain strains like...

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Related Experiment Video

Updated: Jun 16, 2026

Reverse Genetics to Engineer Positive-Sense RNA Virus Variants
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Reverse Genetics to Engineer Positive-Sense RNA Virus Variants

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Reverse genetics systems for SARS-CoV-2.

Wenhao Wang1, Xiaoxue Peng1, Yunyun Jin1

  • 1The Center for Infection and Immunity Study and Molecular Cancer Research Center, School of Medicine, Shenzhen Campus of Sun Yat-sen University, Shenzhen, Guangdong, China.

Journal of Medical Virology
|March 24, 2022
PubMed
Summary
This summary is machine-generated.

Researchers need tools to study SARS-CoV-2. This review summarizes available reverse genetics systems, including infectious clones and replicons, to aid in understanding and combating COVID-19. These systems facilitate research into viral biology and drug development.

Keywords:
BACCPERSARS-CoV-2TARreverse genetics systems

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Area of Science:

  • Virology
  • Molecular Biology

Background:

  • The COVID-19 pandemic highlights the urgent need for deeper understanding of SARS-CoV-2.
  • Limited knowledge of SARS-CoV-2 hinders the development of effective countermeasures.

Purpose of the Study:

  • To review and summarize the available reverse genetics systems for SARS-CoV-2.
  • To provide a guide for researchers on selecting and utilizing these systems.

Main Methods:

  • Literature review of SARS-CoV-2 reverse genetics systems.
  • Analysis of features, advantages, and limitations of different systems.
  • Comparison of infectious clones and replicons.

Main Results:

  • Multiple reverse genetics systems for SARS-CoV-2 have been developed, including infectious clones and replicons.
  • Infectious clones require Biosafety Level 3 (BSL3) facilities, while replicons can be used in widely available Biosafety Level 2 (BSL2) facilities.
  • These systems offer diverse options for studying viral replication, protein function, pathogenesis, and antiviral development.

Conclusions:

  • Reverse genetics systems are crucial for advancing SARS-CoV-2 research.
  • The choice of system depends on research needs and available biosafety infrastructure.
  • This review serves as a valuable resource for researchers, particularly those new to viral reverse genetics.