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Updated: Sep 29, 2025
05:37
Single-Molecule Fluorescence Visualization of DNA Polymerase Dynamics at G-Quadruplexes
Published on: April 4, 2025
871
Identification of G-quadruplex DNA sequences in SARS-CoV2
1Mydnavar, Department of Genetics and Genomics, 2645 Somerset Boulevard, Troy, MI, 48084, USA. akmit123@yahoo.com.
Immunogenetics
|March 18, 2022
Summary
Researchers found 37 G-quadruplex forming G-rich sequences (QGRSs) in the SARS-CoV-2 genome, primarily upstream of genes. These sequences may offer therapeutic targets for inhibiting viral replication and transcription.
Area of Science:
- Genomics
- Virology
- Bioinformatics
Background:
- G-quadruplex structures and Putative Quadruplex Sequences (PQSs) are prevalent in various genomes, including viral RNA.
- These sequences are implicated in critical viral functions such as genome replication, gene regulation, and virulence.
Purpose of the Study:
- To investigate the presence and distribution of potential G-quadruplex structures within the SARS-CoV-2 genome.
- To explore the potential of targeting these structures for therapeutic intervention against SARS-CoV-2.
Main Methods:
- Bioinformatic analysis was employed to identify G-quadruplex forming G-Rich Sequences (QGRSs)/PQSs in the SARS-CoV-2 genome.
- Sequence analysis focused on identifying potential G-quadruplex forming regions and their locations relative to viral genes.
Main Results:
- Thirty-seven QGRSs/PQSs were identified in the SARS-CoV-2 genome (25 on the forward strand, 12 on the reverse strand).
- These identified sequences are predominantly located upstream of SARS-CoV-2 genes.
Conclusions:
- The SARS-CoV-2 genome harbors numerous potential G-quadruplex structures.
- Existing PQS/QGRS ligands could potentially inhibit SARS-CoV-2 replication and transcription, warranting further experimental validation and exploration as therapeutic agents.
