Evidence map›Paper›PMID 15505219›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2004

Three distinct suppressors of RNA silencing encoded by a 20-kb viral RNA genome.

Rui Lu, Alexey Folimonov, Michael Shintaku, Wan-Xiang Li, Bryce W Falk, William O Dawson, Shou-Wei Ding

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 136 papers.

0numbers the graph read from it
0cells of the map it votes in
136citing papers in PubMed
30.4field-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

136 citing papers in PubMed, 387 citations in OpenAlex.

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  10. Identification of an RNA silencing suppressor encoded by an Indian citrus ringspot virus.Physiology and molecular biology of plants : an international journal of functional plant biology · 2025
    Article
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  14. Viruses · 2023
    Article
  15. Infection Defects of RNA and DNA Viruses Induced by Antiviral RNA Interference.Microbiology and molecular biology reviews : MMBR · 2023
    Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

76 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

7 authors at 2 institutions in 1 country.

Rui LuCenter for Plant Cell Biology, Institute for Integrative Genome Biology, and Department of Plant Pathology, University of California, Riverside, CA 92521, USA.
Alexey Folimonov
Michael Shintaku
Wan-Xiang Li
Bryce W Falk
William O Dawson
Shou-Wei Ding
University of Florida · USFlorida Department of Citrus · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Viral infection in both plant and invertebrate hosts requires a virus-encoded function to block the RNA silencing antiviral defense. Here, we report the identification and characterization of three distinct suppressors of RNA silencing encoded by the approximately 20-kb plus-strand RNA genome of citrus tristeza virus (CTV). When introduced by genetic crosses into plants carrying a silencing transgene, both p20 and p23, but not coat protein (CP), restored expression of the transgene. Although none of the CTV proteins prevented DNA methylation of the transgene, export of the silencing signal (capable of mediating intercellular silencing spread) was detected only from the F(1) plants expressing p23 and not from the CP- or p20-expressing F(1) plants, demonstrating suppression of intercellular silencing by CP and p20 but not by p23. Thus, intracellular and intercellular silencing are each targeted by a CTV protein, whereas the third, p20, inhibits silencing at both levels. Notably, CP suppresses intercellular silencing without interfering with intracellular silencing. The novel property of CP suggests a mechanism distinct to p20 and all of the other viral suppressors known to interfere with intercellular silencing and that this class of viral suppressors may not be consistently identified by Agrobacterium coinfiltration because it also induces RNA silencing against the infiltrated suppressor transgene. Our analyses reveal a sophisticated viral counter-defense strategy that targets the silencing antiviral pathway at multiple steps and may be essential for protecting CTV with such a large RNA genome from antiviral silencing in the perennial tree host.

Indexed as

RNA InterferenceAgrobacterium tumefaciensClosterovirusDNA MethylationGenome, ViralNicotianaPlant DiseasesPlants, Genetically ModifiedRNA, ViralSuppression, GeneticRNA, Viral

Identifiers

PMID15505219
PMCPMC524217
OpenAlexW2156445874

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.