Evidence map›Paper›PMID 19917498›Full record

ArticleCell host & microbe2009

Cowpox virus inhibits the transporter associated with antigen processing to evade T cell recognition.

Dina Alzhanova, David M Edwards, Erika Hammarlund, Isabel G Scholz, Daniëlle Horst, Mary J Wagner, Chris Upton, Emmanuel J Wiertz, Mark K Slifka, Klaus Früh

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 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed
2.7field-weighted citation impact, top 9% 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

46 citing papers in PubMed, 78 citations in OpenAlex.

  1. Article
  2. 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
  3. A Structural Atlas of TAP Inhibition by Herpesviruses and Poxviruses.bioRxiv : the preprint server for biology · 2025
    Article
  4. Review
  5. Review
  6. T helper 1 effector memory CD4Cell reports · 2023
    Article
  7. Review
  8. Article
  9. Review
  10. Direct Priming of CD8Journal of virology · 2021
    Article
  11. Article
  12. Article
  13. Article
  14. Observational
  15. Article
  16. 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
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 5 institutions in 3 countries.

Dina AlzhanovaVaccine and Gene Therapy Institute, Oregon Health and Science University, Beaverton, OR 97006, USA.
David M Edwards
Erika Hammarlund
Isabel G Scholz
Daniëlle Horst
Mary J Wagner
Chris Upton
Emmanuel J Wiertz
Mark K Slifka
Klaus Früh
Children's Cancer Therapy Development Institute · USOregon Health & Science University · USUniversity of British Columbia · CALeiden University Medical Center · NLUniversity Medical Center Utrecht · NL

Funding

YR 50 PROJ- ROBERTS PRIMATE ISLETP51RR000163 · NCRR · OREGON REGIONAL PRIMATE RESEARCH CENTER · PI FRUH, KLAUS J · 1985 to 2011
$140.8M
REPRODUCTIVE STEROIDS AND EXPERIMENTAL STROKEK01RR000163 · NCRR · OREGON HEALTH AND SCIENCE UNIVERSITY · PI MURPHY, STEPHANIE J · 2000 to 2004
$479k
Mechanisms of T cell Escape by OrthopoxvirusesR21AI077048 · NIAID · OREGON HEALTH & SCIENCE UNIVERSITY · PI FRUH, KLAUS J · 2007 to 2008
$419k
NCRR NIH HHS K01 RR000163NCRR NIH HHS P51 RR000163NCRR NIH HHS RR00163NIAID NIH HHS AI077048NIAID NIH HHS AO076506NIAID NIH HHS HHSN266200400036CNIAID NIH HHS R21 AI077048
6 · The paper itself

Abstract

Cowpox virus encodes an extensive array of putative immunomodulatory proteins, likely contributing to its wide host range, which includes zoonotic infections in humans. Unlike Vaccinia virus, cowpox virus prevents stimulation of CD8(+) T cells, a block that correlated with retention of MHC class I in the endoplasmic reticulum by the cowpox virus protein CPXV203. However, deletion of CPXV203 did not restore MHC class I transport or T cell stimulation. Here, we demonstrate the contribution of an additional viral protein, CPXV12, which interferes with MHC class I/peptide complex formation by inhibiting peptide translocation by the transporter associated with antigen processing (TAP). Importantly, human and mouse MHC class I transport and T cell stimulation was restored upon deletion of both CPXV12 and CPXV203, suggesting that these unrelated proteins independently mediate T cell evasion in multiple hosts. CPXV12 is a truncated version of a putative NK cell ligand, indicating that poxviral gene fragments can encode new, unexpected functions.

Indexed as

Immune EvasionAnimalsAntigen PresentationATP-Binding Cassette TransportersCarrier ProteinsCD8-Positive T-LymphocytesCell LineCowpoxCowpox virusDown-RegulationEndoplasmic ReticulumHistocompatibility Antigens Class IHumansMiceProtein BindingViral ProteinsATP-Binding Cassette TransportersCarrier ProteinsHistocompatibility Antigens Class Itransporter associated with antigen processing (TAP)Viral Proteins

Identifiers

PMID19917498
PMCPMC2791678
OpenAlexW2091792931

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.