Evidence map›Paper›PMID 15681452›Full record

ArticleJournal of virology2005

Suppression of RNA silencing by a geminivirus nuclear protein, AC2, correlates with transactivation of host genes.

Daniela Trinks, R Rajeswaran, P V Shivaprasad, Rashid Akbergenov, Edward J Oakeley, K Veluthambi, Thomas Hohn, Mikhail M Pooggin

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 106 papers.

0numbers the graph read from it
0cells of the map it votes in
106citing papers in PubMed
22.8field-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

106 citing papers in PubMed, 295 citations in OpenAlex.

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46 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

8 authors at 3 institutions in 3 countries.

Daniela TrinksInstitute of Botany, University of Basel, Schöenbeinstrasse 6, CH-4056 Basel, Switzerland.
R Rajeswaran
P V Shivaprasad
Rashid Akbergenov
Edward J Oakeley
K Veluthambi
Thomas Hohn
Mikhail M Pooggin
Friedrich Miescher Institute · CHMadurai Kamaraj University · INUniversity of Basel · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Bipartite geminiviruses encode a small protein, AC2, that functions as a transactivator of viral transcription and a suppressor of RNA silencing. A relationship between these two functions had not been investigated before. We characterized both of these functions for AC2 from Mungbean yellow mosaic virus-Vigna (MYMV). When transiently expressed in plant protoplasts, MYMV AC2 strongly transactivated the viral promoter; AC2 was detected in the nucleus, and a split nuclear localization signal (NLS) was mapped. In a model Nicotiana benthamiana plant, in which silencing can be triggered biolistically, AC2 reduced local silencing and prevented its systemic spread. Mutations in the AC2 NLS or Zn finger or deletion of its activator domain abolished both these effects, suggesting that suppression of silencing by AC2 requires transactivation of host suppressor(s). In line with this, in Arabidopsis protoplasts, MYMV AC2 or its homologue from African cassava mosaic geminivirus coactivated >30 components of the plant transcriptome, as detected with Affymetrix ATH1 GeneChips. Several corresponding promoters cloned from Arabidopsis were strongly induced by both AC2 proteins. These results suggest that silencing suppression and transcription activation by AC2 are functionally connected and that some of the AC2-inducible host genes discovered here may code for components of an endogenous network that controls silencing.

Indexed as

DNA-Binding ProteinsDNA, ViralGeminiviridaeGene ExpressionGene Expression ProfilingHost-Parasite InteractionsManihotPlant DiseasesRNA InterferenceRNA, MessengerTranscriptional ActivationViral ProteinsAC2 protein, geminivirusDNA-Binding ProteinsDNA, ViralRNA, MessengerViral Proteins

Identifiers

PMID15681452
PMCPMC546592
OpenAlexW2105441860

What Socratic 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 Socratic graph.