DOI: 10.1128/jvi.74.21.10194-10201.2000. Functional Importance of the Coiled-Coil of the Ebola Virus Glycoprotein

Functional Importance of the Coiled-Coil of the Ebola Virus Glycoprotein

10.1128/jvi.74.21.10194-10201.2000

Crossref journal-article

American Society for Microbiology

Journal of Virology (235)

Abstract

ABSTRACT Ebola virus contains a single glycoprotein (GP) that is responsible for receptor binding and membrane fusion and is proteolytically cleaved into disulfide-linked GP1 and GP2 subunits. The GP2 subunit possesses a coiled-coil motif, which plays an important role in the oligomerization and fusion activity of other viral GPs. To determine the functional significance of the coiled-coil motif of GP2, we examined the effects of peptides corresponding to the coiled-coil motif of GP2 on the infectivity of a mutant vesicular stomatitis virus (lacking the receptor-binding/fusion protein) pseudotyped with the Ebola virus GP. A peptide corresponding to the C-terminal helix reduced the infectivity of the pseudotyped virus. We next introduced alanine substitutions into hydrophobic residues in the coiled-coil motif to identify residues important for GP function. None of the substitutions affected GP oligomerization, but some mutations, two in the N-terminal helix and all in the C-terminal helix, reduced the ability of GP to confer infectivity to the mutant vesicular stomatitis virus without affecting the transport of GP to the cell surface, its incorporation into virions, and the production of virus particles. These results indicate that the coiled-coil motif of GP2 plays an important role in facilitating the entry of Ebola virus into host cells and that peptides corresponding to this region could act as efficient antiviral agents.

Bibliography

Watanabe, S., Takada, A., Watanabe, T., Ito, H., Kida, H., & Kawaoka, Y. (2000). Functional Importance of the Coiled-Coil of the Ebola Virus Glycoprotein. Journal of Virology, 74(21), 10194â10201.

Authors 6

Shinji Watanabe (first)
Ayato Takada (additional)
Tokiko Watanabe (additional)
Hiroshi Ito (additional)
Hiroshi Kida (additional)
Yoshihiro Kawaoka (additional)

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Dates

Type	When
Created	23 years, 1 month ago (July 27, 2002, 5:58 a.m.)
Deposited	3 years, 5 months ago (March 4, 2022, 11:43 p.m.)
Indexed	2 months, 1 week ago (June 25, 2025, 6:26 p.m.)
Issued	24 years, 10 months ago (Nov. 1, 2000)
Published	24 years, 10 months ago (Nov. 1, 2000)
Published Print	24 years, 10 months ago (Nov. 1, 2000)

Funders 0

None

BibTeX

@article{Watanabe_2000, title={Functional Importance of the Coiled-Coil of the Ebola Virus Glycoprotein}, volume={74}, ISSN={1098-5514}, url={http://dx.doi.org/10.1128/jvi.74.21.10194-10201.2000}, DOI={10.1128/jvi.74.21.10194-10201.2000}, number={21}, journal={Journal of Virology}, publisher={American Society for Microbiology}, author={Watanabe, Shinji and Takada, Ayato and Watanabe, Tokiko and Ito, Hiroshi and Kida, Hiroshi and Kawaoka, Yoshihiro}, year={2000}, month=nov, pages={10194–10201} }

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