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Updated: May 11, 2026

Modeling The Lifecycle Of Ebola Virus Under Biosafety Level 2 Conditions With Virus-like Particles Containing Tetracistronic Minigenomes
10:11

Modeling The Lifecycle Of Ebola Virus Under Biosafety Level 2 Conditions With Virus-like Particles Containing Tetracistronic Minigenomes

Published on: September 27, 2014

A fatty acid-ordered plasma membrane environment is critical for Ebola virus matrix protein assembly and budding

Souad Amiar1, Kristen A Johnson2, Monica L Husby3

  • 1Borch Department of Medicinal Chemistry & Molecular Pharmacology, Purdue University, West Lafayette, IN; Purdue Institute of Inflammation, Immunology, and Infectious Disease (PI4D), Purdue University, West Lafayette, IN.

Journal of Lipid Research
|October 6, 2024
PubMed

Insights

Ebola virus (EBOV) matrix protein VP40 assembly depends on plasma membrane lipid order, not just headgroups. Fluidizing the membrane with drugs disrupts VP40 assembly and reduces viral budding.

Area of Science:

  • Virology
  • Biophysics
  • Cell Biology

Background:

  • Plasma membrane (PM) domains and order influence lipid-enveloped virus life cycles.
  • The Ebola virus (EBOV) matrix protein VP40 is critical for viral assembly and budding.

Purpose of the Study:

  • To elucidate the mechanistic details of EBOV VP40 interaction with PM lipids.
  • To understand how PM lipid properties affect VP40 oligomerization and viral assembly.

Main Methods:

  • Investigated VP40 interaction with PM lipids using biophysical techniques.
  • Assessed the impact of PM fluidity and lipid order on VP40 binding and oligomerization.
  • Utilized FDA-approved drugs to modulate PM fluidity and observed effects on viral budding.

Main Results:

  • VP40 matrix formation alters PM fluidity.
  • Lipid headgroup distance, tail saturation, and PM order significantly impact VP40 stability and oligomerization.
  • PM fluidization using drugs destabilized VP40 assembly, reducing budding efficiency.
  • EBOV assembly utilizes ordered PM lipid regions, independent of cholesterol.

Conclusions:

  • EBOV assembly is modulated by the biophysical properties of the plasma membrane, specifically lipid order.
  • Targeting PM lipid order presents a potential strategy for antiviral therapies against EBOV.
Keywords:
Ebola virusVP40lipid acyl chainsmembrane fluidityphosphatidylserineplasma membranevirus assemblyvirus budding

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