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Related Experiment Video

Updated: May 1, 2026

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The "histone mimicry" by pathogens.

Uwe Schaefer1, Jessica S Y Ho2, Rab K Prinjha3

  • 1Laboratory of Immune Cell Epigenetics and Signaling, The Rockefeller University, New York, New York 10065.

Cold Spring Harbor Symposia on Quantitative Biology
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PubMed
Summary
This summary is machine-generated.

Viruses suppress host defenses using histone mimics in viral proteins. These mimics disrupt gene expression, offering new targets for antiviral drug development against viral infections.

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Area of Science:

  • Virology
  • Molecular Biology
  • Immunology

Background:

  • Viruses possess mechanisms to evade host immune responses, including inhibiting antiviral gene expression.
  • Key viral strategies involve interfering with host pattern recognition, blocking signaling pathways, and preventing cytokine synthesis.

Purpose of the Study:

  • To identify novel mechanisms of virus-mediated suppression of antiviral gene expression.
  • To explore the role of histone-like sequences (histone mimics) in viral proteins in immune evasion.

Main Methods:

  • Analysis of viral protein structures for histone mimic sequences.
  • Investigating the interaction of viral histone mimics with host gene expression regulators.
  • Assessing the impact of histone mimics on antiviral gene induction.

Main Results:

  • Identification of a novel mechanism where viral proteins contain histone mimics.
  • Demonstration that viral histone mimics interfere with host gene expression regulators.
  • Evidence that this interference contributes to the suppression of antiviral responses.

Conclusions:

  • Viral histone mimics represent a significant mechanism for suppressing host antiviral gene expression.
  • This discovery opens avenues for identifying new antiviral gene regulation pathways.
  • Histone mimicry provides a potential therapeutic strategy for developing drugs targeting gene expression in diseases.