Evidence map›Paper›PMID 30995476›Full record

ArticleCell reports2019

The Influenza A Virus Endoribonuclease PA-X Usurps Host mRNA Processing Machinery to Limit Host Gene Expression.

Lea Gaucherand, Brittany K Porter, Rachel E Levene, Emma L Price, Summer K Schmaling, Chris H Rycroft, Yuzo Kevorkian, Craig McCormick, Denys A Khaperskyy, Marta M Gaglia

Open access · goldAbstract read
In one paragraph

Article in Cell reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed
10.1field-weighted citation impact, top 1% 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

65 citing papers in PubMed, 101 citations in OpenAlex.

  1. Article
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  7. The ribosomal landscape in influenza A virus infection: from molecular mechanisms to clinical relevance.European respiratory review : an official journal of the European Respiratory Society · 2026
    Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. PA and PA-X: two key proteins from segment 3 of the influenza viruses.Frontiers in cellular and infection microbiology · 2025
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Review
  20. Review

5 more citing papers are in PubMed but not listed here.

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

10 authors at 3 institutions in 2 countries.

Lea GaucherandGraduate Program in Molecular Microbiology, Sackler School of Graduate Biomedical Sciences, Tufts University, Boston, MA, USA; Department of Molecular Biology and Microbiology, Tufts University School of Medicine, Boston, MA, USA.
Brittany K PorterDepartment of Microbiology & Immunology, Dalhousie University, Halifax, NS, Canada.
Rachel E LeveneGraduate Program in Molecular Microbiology, Sackler School of Graduate Biomedical Sciences, Tufts University, Boston, MA, USA; Department of Molecular Biology and Microbiology, Tufts University School of Medicine, Boston, MA, USA.
Emma L PriceDepartment of Microbiology & Immunology, Dalhousie University, Halifax, NS, Canada.
Summer K SchmalingDepartment of Molecular Biology and Microbiology, Tufts University School of Medicine, Boston, MA, USA.
Chris H RycroftPaulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA; Computational Research Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
Yuzo KevorkianGraduate Program in Molecular Microbiology, Sackler School of Graduate Biomedical Sciences, Tufts University, Boston, MA, USA; Department of Molecular Biology and Microbiology, Tufts University School of Medicine, Boston, MA, USA.
Craig McCormickDepartment of Microbiology & Immunology, Dalhousie University, Halifax, NS, Canada. Electronic address: craig.mccormick@dal.ca.
Denys A KhaperskyyDepartment of Microbiology & Immunology, Dalhousie University, Halifax, NS, Canada. Electronic address: d.khaperskyy@dal.ca.
Marta M GagliaGraduate Program in Molecular Microbiology, Sackler School of Graduate Biomedical Sciences, Tufts University, Boston, MA, USA; Department of Molecular Biology and Microbiology, Tufts University School of Medicine, Boston, MA, USA. Electronic address: marta.gaglia@tufts.edu.
Tufts University · USDalhousie University · CAHarvard University · US

Funding

MOLECULAR ANALYSIS OF MICROBIAL PATHOGENST32AI007422 · NIAID · TUFTS UNIVERSITY BOSTON · PI Ralph R. Isberg · 1992 to 2026
$5.7M
MOLECULAR GENETICS OF BASIC CELL FUNCTIONST32GM007310 · NIGMS · TUFTS UNIVERSITY BOSTON · PI CAMILLI, ANDREW · 1987 to 2020
$3.9M
Molecular Mechanism of Action of the Influenza PA-X Host Shutoff ProteinR01AI137358 · NIAID · TUFTS UNIVERSITY BOSTON · PI GAGLIA, MARTA MARIA · 2018 to 2022
$2.0M
CIHR MOP-136817NIAID NIH HHS R01 AI137358NIAID NIH HHS T32 AI007422NIGMS NIH HHS T32 GM007310
6 · The paper itself

Abstract

Many viruses shut off host gene expression to inhibit antiviral responses. Viral proteins and host proteins required for viral replication are typically spared in this process, but the mechanisms of target selectivity during host shutoff remain poorly understood. Using transcriptome-wide and targeted reporter experiments, we demonstrate that the influenza A virus endoribonuclease PA-X usurps RNA splicing to selectively target host RNAs for destruction. Proximity-labeling proteomics reveals that PA-X interacts with cellular RNA processing proteins, some of which are partially required for host shutoff. Thus, PA-X taps into host nuclear pre-mRNA processing mechanisms to destroy nascent mRNAs shortly after their synthesis. This mechanism sets PA-X apart from other viral host shutoff proteins that target actively translating mRNAs in the cytoplasm. Our study reveals a unique mechanism of host shutoff that helps us understand how influenza viruses suppress host gene expression.

Indexed as

RNA SplicingA549 CellsCleavage And Polyadenylation Specificity FactorDown-RegulationEndoribonucleasesHEK293 CellsHost-Pathogen InteractionsHumansInfluenza A virusInterferon LambdaInterferonsInterleukinsmRNA Cleavage and Polyadenylation FactorsMutagenesis, Site-DirectedRepressor ProteinsRNA InterferenceCleavage And Polyadenylation Specificity Factorcleavage factor Im, humanEndoribonucleasesInterferon Lambdainterferon-lambda, humanInterferonsInterleukinsmRNA Cleavage and Polyadenylation FactorsNudt21 protein, humanPA-X protein, influenza A virusRepressor ProteinsRNA, MessengerRNA PrecursorsRNA, Small InterferingRNA Splice SitesViral Nonstructural ProteinsCFImhost shutoffinfluenzaPA-Xsplicing

Identifiers

PMID30995476
PMCPMC6499400
OpenAlexW2897943784

What OpenQuestion holds

Textmetadata
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.