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Related Concept Videos

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Viral genomes exhibit remarkable diversity in size, structure, and composition, influencing their replication strategies and interactions with host cells. These genomes consist of either DNA or RNA and may be linear or circular. Additionally, they can be single-stranded or double-stranded, with each configuration affecting how the virus propagates within a host. RNA viruses, for instance, generally have smaller genomes than DNA viruses, a factor that contributes to their high mutation rates and...
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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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Novel perspectives for SARS-CoV-2 genome browsing.

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Summary

A new genome browser for SARS-CoV-2 (Severe Acute Respiratory Syndrome Coronavirus 2) offers a consolidated view of viral variations and additional genomic data. This resource aids the scientific community in understanding and combating COVID-19.

Keywords:
COVID-19TRSentropygenome browsermicroRNAsecondary structurevariation

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Area of Science:

  • Genomics
  • Virology
  • Bioinformatics

Background:

  • Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) has caused a global pandemic.
  • Numerous SARS-CoV-2 genomes have been sequenced, revealing variations from the initial Wuhan reference.
  • Existing genome browsers may not optimally represent these variations or include comprehensive genomic data.

Purpose of the Study:

  • To develop a comprehensive genome browser for SARS-CoV-2.
  • To provide a consolidated view of viral genome variations.
  • To integrate additional relevant genomic information for researchers.

Main Methods:

  • Alignment of over a hundred SARS-CoV-2 genomes.
  • Generation of a consensus SARS-CoV-2 genome sequence.
  • Development of a genome browser interface summarizing variations in a single track.
  • Addition of predicted microRNAs (miRNAs), translation regulatory sequences (TRS), and secondary structure information as separate tracks.

Main Results:

  • A consensus SARS-CoV-2 genome sequence was derived from aligned genomic data.
  • A genome browser was created, displaying sequence variations efficiently.
  • Predicted miRNAs, TRS, and secondary structures were successfully integrated into the browser alongside genomic variations.

Conclusions:

  • A genome browser based on the SARS-CoV-2 consensus sequence provides a valuable resource for the scientific community.
  • The browser's integrated data enhances the understanding of viral diversity and characteristics.
  • This tool can aid global efforts in combating the COVID-19 pandemic.