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Related Concept Videos

Rous Sarcoma Virus (RSV) and Cancer01:03

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Rous Sarcoma virus or RSV was discovered by F. Peyton Rous in the year 1911 as a filterable transmissible agent that could cause tumors in chickens. He won a Nobel Prize for this discovery in 1966. His experiments clearly demonstrated that some cancers could be caused by infectious agents and led to the discovery of many more cancer-causing viruses in animals as well as humans.
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Single Nucleotide Polymorphisms-SNPs01:05

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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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Updated: Dec 21, 2025

Arbovirus Infections As Screening Tools for the Identification of Viral Immunomodulators and Host Antiviral Factors
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Lassa Virus Genetics.

Raphaëlle Klitting1, Samar B Mehta2,3, Judith U Oguzie4,5

  • 1Department of Immunology and Microbiology, The Scripps Research Institute , La Jolla, CA, USA.

Current Topics in Microbiology and Immunology
|May 18, 2020
PubMed
Summary
This summary is machine-generated.

Lassa virus, a dangerous pathogen, uses a compact genome for its life cycle. Genetic studies, including reverse genetics and phylogenetics, are crucial for understanding its evolution, ecology, and potential clinical applications.

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Area of Science:

  • Virology
  • Genomics
  • Ecology

Background:

  • Arenaviruses possess a compact four-gene genome, enabling complex life cycles within specific hosts.
  • Mammalian arenaviruses can infect humans, leading to severe viral hemorrhagic fevers.
  • Lassa virus, a notable zoonosis, causes significant human illness and mortality in West Africa.

Purpose of the Study:

  • To explore the link between Lassa virus genome structure and its life cycle.
  • To detail reverse genetic methods for investigating Lassa virus functional genomic elements.
  • To review sequencing tools for Lassa virus phylogeny and diagnostics.

Main Methods:

  • Utilizing reverse genetics to probe Lassa virus genome function.
  • Employing viral genomic sequencing for phylogenetic analysis.
  • Applying population genetics approaches to study Lassa virus evolution and ecology.

Main Results:

  • The study outlines the relationship between Lassa virus genome structure and its life cycle.
  • Reverse genetic approaches are detailed for functional genomic element analysis.
  • Phylogenetic and population genetics analyses contribute to understanding Lassa virus evolution in West Africa.

Conclusions:

  • Genetic studies are vital for understanding Lassa virus pathogenesis and evolution.
  • Phylogenetic analysis aids in tracking Lassa virus spread and ecological dynamics.
  • Future genetic research holds promise for clinical applications and diagnostics.