Understanding Ebolavirus Assembly and Budding
Author Information
Author(s): Noda Takeshi, Ebihara Hideki, Muramoto Yukiko, Fujii Ken, Takada Ayato, Sagara Hiroshi, Kim Jin Hyun, Kida Hiroshi, Feldmann Heinz, Kawaoka Yoshihiro
Primary Institution: Hokkaido University
Hypothesis
How do Ebolavirus nucleocapsids form and bud from infected cells?
Conclusion
Ebolavirus primarily buds horizontally from the cell surface, with nucleoprotein and matrix protein VP40 playing critical roles in this process.
Supporting Evidence
- Ebolavirus nucleoprotein likely serves as a core for the nucleocapsid complex.
- VP40 is essential for the transport of nucleocapsids to the cell surface.
- Most Ebolavirus particles containing nucleocapsids bud horizontally from the cell surface.
- Expression of VP40 alone produces virus-like particles that bud vertically.
Takeaway
Ebolavirus makes copies of itself by assembling inside cells and then mostly pushes out new virus particles sideways instead of straight up.
Methodology
The study involved expressing various Ebolavirus proteins in mammalian cells and examining their interactions and effects on virus assembly and budding.
Limitations
The study was conducted under biosafety level 4 conditions, which may limit the scope of experiments.
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website