Evidence map›Paper›PMID 19917497›Full record

ArticleCell host & microbe2009

Two mechanistically distinct immune evasion proteins of cowpox virus combine to avoid antiviral CD8 T cells.

Minji Byun, Marieke C Verweij, David J Pickup, Emmanuel J H J Wiertz, Ted H Hansen, Wayne M Yokoyama

Open access · bronzeAbstract read
In one paragraph

Article in Cell host & microbe, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

38 citing papers in PubMed, 67 citations in OpenAlex.

  1. Structurally diverse viral inhibitors converge on a shared mechanism to stall the antigen transporter TAP.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  2. A Structural Atlas of TAP Inhibition by Herpesviruses and Poxviruses.bioRxiv : the preprint server for biology · 2025
    Article
  3. Review
  4. Review
  5. Review
  6. Article
  7. Review
  8. Direct Priming of CD8Journal of virology · 2021
    Article
  9. Article
  10. Article
  11. Dynamic Natural Killer Cell and T Cell Responses to Influenza Infection.Frontiers in cellular and infection microbiology · 2020
    Review
  12. Article
  13. Cowpox virus encodes a protein that binds B7.1 and B7.2 and subverts T cell costimulation.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 4 institutions in 2 countries.

Minji ByunDivision of Rheumatology, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA.
Marieke C Verweij
David J Pickup
Emmanuel J H J Wiertz
Ted H Hansen
Wayne M Yokoyama
Leiden University Medical Center · NLWashington University in St. Louis · USDuke Medical Center · USHoward Hughes Medical Institute · US

Funding

Virology and Smallpox VaccinationsU54AI057160 · NIAID · WASHINGTON UNIVERSITY · PI RAY, RANJIT · 2003 to 2013
$80.9M
MHC-I regulation by herpes virusR01AI019687 · NIAID · WASHINGTON UNIVERSITY · PI FREMONT, DAVED H. · 1985 to 2016
$5.2M
Howard Hughes Medical InstituteNIAID NIH HHS R01 AI019687NIAID NIH HHS U54 AI057160NIAID NIH HHS U54-AI057160
6 · The paper itself

Abstract

Downregulation of MHC class I on the cell surface is an immune evasion mechanism shared by many DNA viruses, including cowpox virus. Previously, a cowpox virus protein, CPXV203, was shown to downregulate MHC class I. Here we report that CPXV12 is the only other MHC class I-regulating protein of cowpox virus and that it uses a mechanism distinct from that of CPXV203. Whereas CPXV203 retains fully assembled MHC class I by exploiting the KDEL-mediated endoplasmic reticulum retention pathway, CPXV12 binds to the peptide-loading complex and inhibits peptide loading on MHC class I molecules. Viruses deleted of both CPXV12 and CPXV203 demonstrated attenuated virulence in a CD8 T cell-dependent manner. These data demonstrate that CPXV12 and CPXV203 proteins combine to ablate MHC class I expression and abrogate antiviral CD8 T cell responses.

Indexed as

Immune EvasionAnimalsCarrier ProteinsCD8-Positive T-LymphocytesCell LineCowpoxCowpox virusDown-RegulationEndoplasmic ReticulumFemaleHistocompatibility Antigens Class IMiceMice, Inbred C57BLProtein BindingViral ProteinsCarrier ProteinsHistocompatibility Antigens Class IViral Proteins

Identifiers

PMID19917497
PMCPMC2791900
OpenAlexW2038363929

What OpenQuestion holds

Textmetadata
LicenceTDM
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.