TRIM26 is a critical host factor for HCV replication and contributes to host tropism.
Journal
Science advances
ISSN: 2375-2548
Titre abrégé: Sci Adv
Pays: United States
ID NLM: 101653440
Informations de publication
Date de publication:
01 2021
01 2021
Historique:
received:
24
07
2020
accepted:
13
11
2020
entrez:
1
2
2021
pubmed:
2
2
2021
medline:
2
2
2021
Statut:
epublish
Résumé
Hepatitis C virus (HCV) remains a major human pathogen that requires better understanding of virus-host interactions. In this study, we performed a genome-wide CRISPR-Cas9 screening and identified TRIM26, an E3 ligase, as a critical HCV host factor. Deficiency of TRIM26 specifically impairs HCV genome replication. Mechanistic studies showed that TRIM26 interacts with HCV-encoded NS5B protein and mediates its K27-linked ubiquitination at residue K51, and thus promotes the NS5B-NS5A interaction. Moreover, mouse TRIM26 does not support HCV replication because of its unique six-amino acid insert that prevents its interaction with NS5B. Ectopic expression of human TRIM26 in a mouse hepatoma cell line that has been reconstituted with other essential HCV host factors promotes HCV infection. In conclusion, we identified TRIM26 as a host factor for HCV replication and a new determinant of host tropism. These results shed light on HCV-host interactions and may facilitate the development of an HCV animal model.
Identifiants
pubmed: 33523994
pii: 7/2/eabd9732
doi: 10.1126/sciadv.abd9732
pmc: PMC7793585
pii:
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Informations de copyright
Copyright © 2021 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).
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