Evidence map›Paper›PMID 32511263›Full record

ArticlePLoS pathogens2020

Virus subtype-specific suppression of MAVS aggregation and activation by PB1-F2 protein of influenza A (H7N9) virus.

Pak-Hin Hinson Cheung, Tak-Wang Terence Lee, Chun Kew, Honglin Chen, Kwok-Yung Yuen, Chi-Ping Chan, Dong-Yan Jin

Open access · goldAbstract read
In one paragraph

Article in PLoS pathogens, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
1.8field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 35 citations in OpenAlex.

  1. Article
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  4. Cgref1 is a CREB-H-regulated hepatokine that promotes hepaticInternational journal of biological sciences · 2025
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  19. Role of Mitochondria in Viral Infections.Life (Basel, Switzerland) · 2021
    Review
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Pak-Hin Hinson CheungSchool of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong.ORCID 0000-0003-3682-7571
Tak-Wang Terence LeeSchool of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong.ORCID 0000-0003-3486-8185
Chun KewSchool of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong.
Honglin ChenState Key Laboratory for Emerging Infectious Diseases and Department of Microbiology, The University of Hong Kong, Pokfulam, Hong Kong.ORCID 0000-0001-5108-8338
Kwok-Yung YuenState Key Laboratory for Emerging Infectious Diseases and Department of Microbiology, The University of Hong Kong, Pokfulam, Hong Kong.ORCID 0000-0002-2083-1552
Chi-Ping ChanSchool of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong.ORCID 0000-0001-6876-0864
Dong-Yan JinSchool of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong.ORCID 0000-0002-2778-3530
University of Hong Kong · HK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Human infection with avian influenza A (H5N1) and (H7N9) viruses causes severe respiratory diseases. PB1-F2 protein is a critical virulence factor that suppresses early type I interferon response, but the mechanism of its action in relation to high pathogenicity is not well understood. Here we show that PB1-F2 protein of H7N9 virus is a particularly potent suppressor of antiviral signaling through formation of protein aggregates on mitochondria and inhibition of TRIM31-MAVS interaction, leading to prevention of K63-polyubiquitination and aggregation of MAVS. Unaggregated MAVS accumulated on fragmented mitochondria is prone to degradation by both proteasomal and lysosomal pathways. These properties are proprietary to PB1-F2 of H7N9 virus but not shared by its counterpart in WSN virus. A recombinant virus deficient of PB1-F2 of H7N9 induces more interferon β in infected cells. Our findings reveal a subtype-specific mechanism for destabilization of MAVS and suppression of interferon response by PB1-F2 of H7N9 virus.

Indexed as

Signal TransductionA549 CellsAdaptor Proteins, Signal TransducingAnimalsDogsHEK293 CellsHumansInfluenza A Virus, H7N9 SubtypeInfluenza, HumanInterferon-betaMadin Darby Canine Kidney CellsMitochondriaProtein Aggregation, PathologicalTHP-1 CellsTripartite Motif ProteinsUbiquitin-Protein LigasesAdaptor Proteins, Signal TransducingInterferon-betaMAVS protein, humanPB1-F2 protein, Influenza A virusTRIM31 protein, humanTripartite Motif ProteinsUbiquitin-Protein LigasesViral Proteins

Identifiers

PMID32511263
PMCPMC7302872
OpenAlexW3033003240

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.