Evidence map›Paper›PMID 24443473›Full record

ArticleThe Journal of general virology2014

The ORF4b-encoded accessory proteins of Middle East respiratory syndrome coronavirus and two related bat coronaviruses localize to the nucleus and inhibit innate immune signalling.

Krystal L Matthews, Christopher M Coleman, Yvonne van der Meer, Eric J Snijder, Matthew B Frieman

Abstract read
In one paragraph

Article in The Journal of general virology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 86 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
86citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

86 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Human coronaviruses: activation and antagonism of innate immune responses.Microbiology and molecular biology reviews : MMBR · 2025
    Review
  6. Bats from an area of the Colombian Caribbean reveal the circulation ofCurrent research in parasitology & vector-borne diseases · 2025
    Article
  7. Recurrent viral capture of cellular phosphodiesterases that antagonize OAS-RNase L.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  8. Review
  9. Article
  10. Review
  11. Article
  12. Contribution to pathogenesis of accessory proteins of deadly human coronaviruses.Frontiers in cellular and infection microbiology · 2023
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Systematizing the genomic order and relatedness in the open reading frames (ORFs) of the coronaviruses.Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases · 2021
    Article

26 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

5 authors.

Krystal L MatthewsDepartment of Microbiology and Immunology, University of Maryland at Baltimore, 685 West Baltimore St, Room 380, Baltimore, MD 21201, USA.
Christopher M ColemanDepartment of Microbiology and Immunology, University of Maryland at Baltimore, 685 West Baltimore St, Room 380, Baltimore, MD 21201, USA.
Yvonne van der MeerMolecular Virology Laboratory, Department of Medical Microbiology, Leiden University Medical Center, PO Box 9600, 2300RC Leiden, The Netherlands.
Eric J SnijderMolecular Virology Laboratory, Department of Medical Microbiology, Leiden University Medical Center, PO Box 9600, 2300RC Leiden, The Netherlands.
Matthew B FriemanDepartment of Microbiology and Immunology, University of Maryland at Baltimore, 685 West Baltimore St, Room 380, Baltimore, MD 21201, USA.

Funding

Role of the Epithelial Growth Factor Receptor in SARS Coronavirus PathogenesisR01AI095569 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI FRIEMAN, MATTHEW BRYAN · 2011 to 2016
$2.3M
NIAID NIH HHS R01 AI095569NIAID NIH HHS R01 AI095569-01
6 · The paper itself

Abstract

The recently emerged Middle East respiratory syndrome coronavirus (MERS-CoV), a betacoronavirus, is associated with severe pneumonia and renal failure. The environmental origin of MERS-CoV is as yet unknown; however, its genome sequence is closely related to those of two bat coronaviruses, named BtCoV-HKU4 and BtCoV-HKU5, which were derived from Chinese bat samples. A hallmark of highly pathogenic respiratory viruses is their ability to evade the innate immune response of the host. CoV accessory proteins, for example those from severe acute respiratory syndrome CoV (SARS-CoV), have been shown to block innate antiviral signalling pathways. MERS-CoV, similar to SARS-CoV, has been shown to inhibit type I IFN induction in a variety of cell types in vitro. We therefore hypothesized that MERS-CoV and the phylogenetically related BtCoV-HKU4 and BtCoV-HKU5 may encode proteins with similar capabilities. In this study, we have demonstrated that the ORF4b-encoded accessory protein (p4b) of MERS-CoV, BtCoV-HKU4 and BtCoV-HKU5 may indeed facilitate innate immune evasion by inhibiting the type I IFN and NF-κB signalling pathways. We also analysed the subcellular localization of p4b from MERS-CoV, BtCoV-HKU4 and BtCoV-HKU5 and demonstrated that all are localized to the nucleus.

Indexed as

Host-Pathogen InteractionsImmune EvasionAnimalsCell NucleusChiropteraCoronavirusHumansInterferon Type INF-kappa BViral Regulatory and Accessory ProteinsInterferon Type INF-kappa BViral Regulatory and Accessory Proteins

Identifiers

PMID24443473
PMCPMC3973478

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.