Evidence map›Paper›PMID 22810086›Full record

ArticleEpigenetics2012

IDN2 has a role downstream of siRNA formation in RNA-directed DNA methylation.

Andreas Finke, Markus Kuhlmann, Michael Florian Mette

Open access · bronzeAbstract read
In one paragraph

Article in Epigenetics, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
5.2field-weighted citation impact, top 5% 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

16 citing papers in PubMed, 32 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Dynamics and function of DNA methylation in plants.Nature reviews. Molecular cell biology · 2018
    Review
  8. Plant physiology · 2018
    Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Connecting the dots of RNA-directed DNA methylation in Arabidopsis thaliana.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2014
    Review
  14. Article
  15. Review
  16. Article
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

3 authors at 1 institution in 1 country.

Andreas FinkeLeibniz Institute of Plant Genetics and Crop Plant Research, Gatersleben, Germany.
Markus Kuhlmann
Michael Florian Mette
Leibniz Institute of Plant Genetics and Crop Plant Research · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In plants, a particular class of short interfering (si)RNAs can serve as a signal to induce cytosine methylation at homologous genomic regions. If the targeted DNA has promoter function, this RNA-directed DNA methylation (RdDM) can result in transcriptional gene silencing (TGS). RNA-directed transcriptional gene silencing (RdTGS) of transgenes provides a versatile system for the study of epigenetic gene regulation. We used transcription of a nopaline synthase promoter (ProNOS)-inverted repeat (IR) to provide a RNA signal that triggers de novo cytosine methylation and TGS of a homologous ProNOS copy in trans. Utilizing a ProNOS-NPTII reporter gene showing high sensitivity to silencing in this two component system, a forward genetic screen for EMS-induced no rna-directed transcriptional silencing (nrd) mutations was performed in Arabidopsis thaliana. Three nrd mutant lines were found to contain one novel loss-of-function allele of idn2/rdm12 and two of nrpd2a/nrpe2a. IDN2/RDM12 encodes a XH/XS domain protein that is able to bind double-stranded RNA with 5' overhangs, while NRPD2a/NRPE2a encodes the common second-largest subunit of the plant specific DNA-dependent RNA polymerases IV and V involved in silencing processes. Both idn2/rdm12 and nrpd2a/nrpe2a release target transgene expression and reduce CHH context methylation at transgenic as well as endogenous RdDM target regions to similar extents. Nevertheless, accumulation of IR-derived siRNA is not affected, allowing us to present a refined model for the pathway of RdDM and RdTGS that positions function of IDN2 downstream of siRNA formation and points to an important role for its XH domain.

Indexed as

Gene SilencingAmino Acid OxidoreductasesArabidopsisArabidopsis ProteinsDNA-Directed RNA PolymerasesDNA MethylationGenes, ReporterInverted Repeat SequencesMutationPromoter Regions, GeneticRNA-Binding ProteinsRNA, Small InterferingTranscription, GeneticAmino Acid OxidoreductasesArabidopsis ProteinsDNA-Directed RNA PolymerasesIDN2 protein, Arabidopsisnopaline synthaseRNA-Binding ProteinsRNA, Small Interfering

Identifiers

PMID22810086
PMCPMC3427290
OpenAlexW2082156565

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.