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Related Concept Videos

Single Nucleotide Polymorphisms-SNPs01:05

Single Nucleotide Polymorphisms-SNPs

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A single nucleotide polymorphism or SNP is a single nucleotide variation at a specific genomic position in a large population. It is the most prevalent type of sequence variation found in the human genome. Point mutations that occur in more than 1% of the population qualify as SNPs. These are present once every 1000 nucleotides on an average in the human genome. Replacement of a purine with another purine (A/G) or a pyrimidine with another pyrimidine (C/T) is known as a transition. In contrast,...
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Probing RNA Structure with Dimethyl Sulfate Mutational Profiling with Sequencing In Vitro and in Cells
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SARS-CoV-2 main protease (M-pro) mutational profiling: An insight into mutation coldspots.

Pol Garcia-Segura1, Ariadna Llop-Peiró1, Nil Novau-Ferré1

  • 1Universitat Rovira i Virgili, Departament de Bioquímica i Biotecnologia, Research group in Cheminformatics & Nutrition, Campus de Sescelades, 43007, Tarragona, Spain.

Computers in Biology and Medicine
|November 12, 2024
PubMed
Summary

Researchers identified 32 critical mutation coldspots in the SARS-CoV-2 main protease (M-pro). These conserved residues are vital for M-pro structure and could be targets for developing new antiviral drugs against COVID-19 and future coronavirus outbreaks.

Keywords:
3CL-ProCOVID-19Dimerization inhibitionGenomic profilingM-ProMutation coldspots

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Area of Science:

  • Virology
  • Structural Biology
  • Drug Discovery

Background:

  • The COVID-19 pandemic, caused by SARS-CoV-2, necessitates understanding viral mutations for effective treatments.
  • Viral mutations can lead to drug resistance, impacting the long-term success of antiviral therapies.
  • The SARS-CoV-2 main protease (M-pro) is essential for viral replication and a key target for drug development.

Purpose of the Study:

  • To analyze mutations in the SARS-CoV-2 main protease (M-pro).
  • To identify mutation-resistant residues (coldspots) within M-pro.
  • To provide insights for rational drug design targeting M-pro and potential future coronavirus outbreaks.

Main Methods:

  • Analysis of over 5.7 million SARS-CoV-2 genomes from GISAID.
  • Identification of M-pro mutation coldspots (mutated in ≤5 genomes).
  • Structural analysis of identified coldspots and their conservation across coronaviruses.

Main Results:

  • 32 M-pro mutation coldspots were identified.
  • These coldspots are crucial for interprotomer interactions and substrate-binding site networks.
  • Mutation coldspots are highly conserved across main proteases of other coronaviruses.

Conclusions:

  • Identified M-pro coldspots offer valuable targets for structure-based drug design.
  • These findings provide a foundation for developing M-pro inhibitors to combat SARS-CoV-2.
  • The research has potential applications for inhibiting M-pro dimerization and addressing future coronavirus threats.