Evidence map›Paper›PMID 17175536›Full record

ArticleNucleic acids research2007

Nucleus-encoded plastid sigma factor SIG3 transcribes specifically the psbN gene in plastids.

Wafa Zghidi, Livia Merendino, Annick Cottet, Régis Mache, Silva Lerbs-Mache

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
1.9field-weighted citation impact, top 16% 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

43 citing papers in PubMed, 88 citations in OpenAlex.

  1. Genome-Wide Identification of Sigma Factors inInternational journal of molecular sciences · 2026
    Article
  2. Regreening mechanisms in cucumber: insights from a CsSIG2 mutation affecting chloroplast development.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025
    Article
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  7. Plastid Gene Transcription: An Update on Promoters and RNA Polymerases.Methods in molecular biology (Clifton, N.J.) · 2021
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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

5 authors at 2 institutions in 1 country.

Wafa ZghidiLaboratoire Plastes et différenciation cellulaire, Université Joseph Fourier and Centre National de la Recherche Scientifique, B.P. 53, 38041 Grenoble, France.
Livia Merendino
Annick Cottet
Régis Mache
Silva Lerbs-Mache
Université Joseph Fourier · FRCentre National de la Recherche Scientifique · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We have investigated the function of one of the six plastid sigma-like transcription factors, sigma 3 (SIG3), by analysing two different Arabidopsis T-DNA insertion lines having disrupted SIG3 genes. Hybridization of wild-type and sig3 plant RNA to a plastid specific microarray revealed a strong reduction of the plastid psbN mRNA. The microarray result has been confirmed by northern blot analysis. The SIG3-specific promoter region has been localized on the DNA by primer extension and mRNA capping experiments. Results suggest tight regulation of psbN gene expression by a SIG3-PEP holoenzyme. The psbN gene is localized on the opposite strand of the psbB operon, between the psbT and psbH genes, and the SIG3-dependent psbN transcription produces antisense RNA to the psbT-psbH intergenic region. We show that this antisense RNA is not limited to the intergenic region, i.e. it does not terminate at the end of the psbN gene but extends as antisense transcript to cover the whole psbT coding region. Thus, by specific transcription initiation at the psbN gene promoter, SIG3-PEP holoenzyme could also influence the expression of the psbB operon by producing psbT antisense RNA.

Indexed as

Gene Expression Regulation, PlantArabidopsisArabidopsis ProteinsCell NucleusMutagenesis, InsertionalOperonPlastidsRNA, MessengerSigma FactorTranscription, GeneticArabidopsis ProteinsRNA, MessengerSig3 sigma factorSigma Factor

Identifiers

PMID17175536
PMCPMC1802608
OpenAlexW2011642283

What OpenQuestion holds

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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.