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Related Concept Videos

Inhibitors of Viral Protein Synthesis01:30

Inhibitors of Viral Protein Synthesis

Protein synthesis is indispensable for viral replication, as viruses lack the cellular machinery required for this process and must hijack the host's translational apparatus. In response, host cells deploy a critical innate immune defense involving interferons, specialized cytokines that play a central role in inhibiting viral propagation.Upon viral detection, infected cells release interferons that bind to receptors on adjacent uninfected cells, activating the JAK-STAT signaling pathway and...
Inhibitors Of Virion Release01:25

Inhibitors Of Virion Release

Viral replication and dissemination rely on efficient mechanisms for host cell entry, genome replication, assembly, and release. Influenza viruses, such as types A and B, are negative-sense single-stranded RNA viruses with a segmented genome, that depend on two critical surface glycoproteins to carry out these processes: hemagglutinin (HA) and neuraminidase (NA). HA initiates infection by binding to sialic acid residues on the surface of host epithelial cells, facilitating receptor-mediated...
Immune Response Against Viral Pathogens01:29

Immune Response Against Viral Pathogens

The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
Viruses with RNA Genomes01:29

Viruses with RNA Genomes

RNA viruses are categorized into positive-strand, negative-strand, or double-stranded groups based on their genomic structure and replication mechanisms. This classification dictates how they exploit host cellular machinery for protein synthesis and replication. Some RNA viruses also utilize reverse transcription as part of their life cycle, further diversifying their replication strategies.Positive-Strand RNA VirusesPositive-strand RNA viruses have genomes that function directly as messenger...
Inhibitors of Virion Maturation and Assembly01:19

Inhibitors of Virion Maturation and Assembly

As part of their replication cycle, certain viruses synthesize long precursor proteins called polyproteins within infected host cells. In human immunodeficiency virus (HIV), two major polyproteins are produced: Gag and Gag-Pol. The Gag polyprotein supplies the structural components of the virus, while Gag-Pol includes essential viral enzymes such as reverse transcriptase, integrase, and protease. After synthesis, these polyproteins move to the host cell membrane, where they assemble into an...
Influenza01:27

Influenza

Influenza is an acute, highly communicable viral disease that affects the respiratory tract and is responsible for seasonal epidemics worldwide. Influenza A is the most prevalent type associated with widespread outbreaks and is subtyped based on two surface glycoproteins: hemagglutinin (H) and neuraminidase (N), as in H1N1. These glycoproteins are essential for viral infectivity, transmission, and immune recognition. Transmission occurs primarily through respiratory droplets and contaminated...

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Related Experiment Video

Updated: May 28, 2026

High-throughput Quantitative Real-time RT-PCR Assay for Determining Expression Profiles of Types I and III Interferon Subtypes
10:00

High-throughput Quantitative Real-time RT-PCR Assay for Determining Expression Profiles of Types I and III Interferon Subtypes

Published on: March 24, 2015

Bunyaviruses and the type I interferon system.

Richard M Elliott1, Friedemann Weber

  • 1Centre for Biomolecular Sciences, School of Biology, University of St. Andrews, St. Andrews, KY16 9ST, Scotland, UK;

Viruses
|October 14, 2011
PubMed
Summary
This summary is machine-generated.

Bunyaviruses are a global threat transmitted by arthropods. This review details how these viruses overcome the host interferon system to establish infection, despite limited knowledge of their virulence mechanisms.

Keywords:
NSs proteinsbunyavirusesinterferon system

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Related Experiment Videos

Last Updated: May 28, 2026

High-throughput Quantitative Real-time RT-PCR Assay for Determining Expression Profiles of Types I and III Interferon Subtypes
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Published on: March 24, 2015

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10:55

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Published on: October 11, 2013

Confocal Imaging of Double-Stranded RNA and Pattern Recognition Receptors in Negative-Sense RNA Virus Infection
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Confocal Imaging of Double-Stranded RNA and Pattern Recognition Receptors in Negative-Sense RNA Virus Infection

Published on: January 26, 2019

Area of Science:

  • Virology
  • Immunology
  • Pathogen Biology

Background:

  • The family Bunyaviridae comprises over 350 viruses globally distributed.
  • Many bunyaviruses are arthropod-borne and cause significant diseases in humans, animals, and plants.
  • Bunyaviruses represent an emerging threat, yet their virulence mechanisms remain poorly understood.

Purpose of the Study:

  • To summarize current knowledge on bunyavirus virulence.
  • To elucidate how bunyaviruses establish infection despite the host's interferon response.

Main Methods:

  • Review of existing scientific literature on bunyavirus-host interactions.
  • Analysis of studies detailing bunyavirus evasion of interferon-mediated antiviral immunity.

Main Results:

  • Bunyaviruses employ diverse strategies to counteract the interferon system.
  • Specific viral proteins and their roles in inhibiting interferon signaling pathways are highlighted.

Conclusions:

  • Understanding bunyavirus virulence mechanisms is crucial for controlling emerging viral diseases.
  • Further research into bunyavirus-interferon interactions will inform therapeutic strategies.