Logo image
The Ebola Virus Glycoprotein and HIV-1 Vpu Employ Different Strategies to Counteract the Antiviral Factor Tetherin
Journal article   Open access   Peer reviewed

The Ebola Virus Glycoprotein and HIV-1 Vpu Employ Different Strategies to Counteract the Antiviral Factor Tetherin

Annika Kühl, Carina Banning, Andrea Marzi, Jörg Votteler, Imke Steffen, Stephanie Bertram, Ilona Glowacka, Andreas Konrad, Michael Stürzl, Ju-Tao Guo, …
The Journal of infectious diseases, v 204(Suppl 3), pp S850-S860
01 Nov 2011
PMID: 21987761
url
https://doi.org/10.1093/infdis/jir378View
Published, Version of Record (VoR)Maybe Open Access (Publisher Bronze) Open

Abstract

Viral Biology
The antiviral protein tetherin/BST2/CD317/HM1.24 restricts cellular egress of human immunodeficiency virus (HIV) and of particles mimicking the Ebola virus (EBOV), a hemorrhagic fever virus. The HIV-1 viral protein U (Vpu) and the EBOV-glycoprotein (EBOV-GP) both inhibit tetherin. Here, we compared tetherin counteraction by EBOV-GP and Vpu. We found that EBOV-GP but not Vpu counteracted tetherin from different primate species, indicating that EBOV-GP and Vpu target tetherin differentially. Tetherin interacted with the GP2 subunit of EBOV-GP, which might encode the determinants for tetherin counteraction. Vpu reduced cell surface expression of tetherin while EBOV-GP did not, suggesting that both proteins employ different mechanisms to counteract tetherin. Finally, Marburg virus (MARV)–GP also inhibited tetherin and downregulated tetherin in a cell type–dependent fashion, indicating that tetherin antagonism depends on the cellular source of tetherin. Collectively, our results indicate that EBOV-GP counteracts tetherin by a novel mechanism and that tetherin inhibition is conserved between EBOV-GP and MARV-GP.

Metrics

11 Record Views
60 citations in Scopus

Details

UN Sustainable Development Goals (SDGs)

This publication has contributed to the advancement of the following goals:

#3 Good Health and Well-Being

InCites Highlights

Data related to this publication, from InCites Benchmarking & Analytics tool:

Collaboration types
Domestic collaboration
International collaboration
Web of Science research areas
Immunology
Infectious Diseases
Microbiology
Logo image