Evidence map›Paper›PMID 34065592›Full record

ArticleMicroorganisms2021

Amino Acid Residues Involved in Inhibition of Host Gene Expression by Influenza A/Brevig Mission/1/1918 PA-X.

Kevin Chiem, Luis Martinez-Sobrido, Aitor Nogales, Marta L DeDiego

Open access · goldAbstract read
In one paragraph

Article in Microorganisms, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.1field-weighted citation impact, top 23% 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

7 citing papers in PubMed, 9 citations in OpenAlex.

  1. iScience · 2025
    Article
  2. Article
  3. PA and PA-X: two key proteins from segment 3 of the influenza viruses.Frontiers in cellular and infection microbiology · 2025
    Review
  4. Review
  5. Bacterial Artificial Chromosome Reverse Genetics Approaches for SARS-CoV-2.Methods in molecular biology (Clifton, N.J.) · 2024
    Article
  6. Review
  7. Article
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

4 authors at 2 institutions in 2 countries.

Kevin ChiemDepartment of Disease Intervention and Prevention, Texas Biomedical Research Institute, San Antonio, TX 78227, USA.
Luis Martinez-SobridoDepartment of Disease Intervention and Prevention, Texas Biomedical Research Institute, San Antonio, TX 78227, USA.ORCID 0000-0001-7084-0804
Aitor NogalesCenter for Animal Health Research, INIA-CISA, Valdeolmos, 28130 Madrid, Spain.ORCID 0000-0002-2424-7900
Marta L DeDiegoDepartment of Molecular and Cell Biology, Centro Nacional de Biotecnología (CNB-CSIC), Campus Universidad Autónoma de Madrid, 28049 Madrid, Spain.ORCID 0000-0002-7888-7372
Texas Biomedical Research Institute · USCentro Nacional de Biotecnología · ES

Funding

Dynamics of the protective vaccine-induced human influenza neuraminidase B cell responseR01AI145332 · NIAID · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI KOBIE, JAMES J, MARTINEZ-SOBRIDO, LUIS · 2019 to 2022
$3.0M
New York Influenza Center of Excellence (NYICE), a member of the National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Department of Health and Human Services, Centers of Excellence for Influenza Research and Surveillance (CEIRS) contract No. HHSN272201400005C (NYICE)NIAID NIH HHS R01 AI145332Spanish Ministry of Science, Innovation and Universities "Ramon y Cajal" Incorporation grant (RYC-2017)Spanish Ministry of Science, Innovation and Universities RTI-2018-094213-A-I00
6 · The paper itself

Abstract

The influenza A virus (IAV) PA-X protein is a virulence factor that selectively degrades host mRNAs leading to protein shutoff. This function modulates host inflammation, antiviral responses, cell apoptosis, and pathogenesis. In this work we describe a novel approach based on the use of bacteria and plasmid encoding of the PA-X gene under the control of the bacteriophage T7 promoter to identify amino acid residues important for A/Brevig Mission/1/1918 H1N1 PA-X's shutoff activity. Using this system, we have identified PA-X mutants encoding single or double amino acid changes, which diminish its host shutoff activity, as well as its ability to counteract interferon responses upon viral infection. This novel bacteria-based approach could be used for the identification of viral proteins that inhibit host gene expression as well as the amino acid residues responsible for inhibition of host gene expression.

Indexed as

bacteria-based screeninginfluenza A virusPAPA-Xshutoff

Identifiers

PMID34065592
PMCPMC8160905
OpenAlexW3159948070

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.