Evidence map›Paper›PMID 22858634›Full record

ArticlePlant physiology2012

Positive regulation of psbA gene expression by cis-encoded antisense RNAs in Synechocystis sp. PCC 6803.

Isamu Sakurai, Damir Stazic, Marion Eisenhut, Eerika Vuorio, Claudia Steglich, Wolfgang R Hess, Eva-Mari Aro

Open access · hybridAbstract read
In one paragraph

Article in Plant physiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
2.8field-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

48 citing papers in PubMed, 92 citations in OpenAlex.

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  9. DNA:RNA Hybrids Are Major Dinoflagellate Minicircle Molecular Types.International journal of molecular sciences · 2023
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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

7 authors at 3 institutions in 2 countries.

Isamu SakuraiDepartment of Biochemistry and Food Chemistry, Molecular Plant Biology, University of Turku, FI-20014 Turku, Finland.
Damir Stazic
Marion Eisenhut
Eerika Vuorio
Claudia Steglich
Wolfgang R Hess
Eva-Mari Aro
Heinrich Heine University Düsseldorf · DEUniversity of Turku · FIUniversity of Freiburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The D1 protein of photosystem II in the thylakoid membrane of photosynthetic organisms is encoded by psbA genes, which in cyanobacteria occur in the form of a small gene family. Light-dependent up-regulation of psbA gene expression is crucial to ensure the proper replacement of the D1 protein. To gain a high level of gene expression, psbA transcription can be enhanced by several orders of magnitude. Recent transcriptome analyses demonstrated a high number of cis-encoded antisense RNAs (asRNAs) in bacteria, but very little is known about their possible functions. Here, we show the presence of two cis-encoded asRNAs (PsbA2R and PsbA3R) of psbA2 and psbA3 from Synechocystis sp. PCC 6803. These asRNAs are located in the 5' untranslated region of psbA2 and psbA3 genes. Their expression becomes up-regulated by light and down-regulated by darkness, similar to their target mRNAs. In the PsbA2R-suppressing strain [PsbA2R(-)], the amount of psbA2 mRNA was only about 50% compared with the control strain. Likewise, we identified a 15% lowered activity of photosystem II and a reduced amount of the D1 protein in PsbA2R(-) compared with the control strain. The function of PsbA2R in the stabilization of psbA2 mRNA was shown from in vitro RNase E assay when the AU box and the ribosome-binding site in the 5' untranslated region of psbA2 mRNA were both covered by PsbA2R. These results add another layer of complexity to the mechanisms that contribute to psbA gene expression and show PsbA2R as a positively acting factor to achieve a maximum level of D1 synthesis.

Indexed as

Gene Expression Regulation, Bacterial5' Untranslated RegionsAmino Acid SequenceBacterial ProteinsBinding SitesDarknessEndoribonucleasesEscherichia coliGenes, BacterialLightMolecular Sequence DataMutagenesisPhotosynthesisPhotosystem II Protein ComplexRecombinant ProteinsRegulatory Sequences, Ribonucleic Acid5' Untranslated RegionsBacterial ProteinsEndoribonucleasesPhotosystem II Protein Complexphotosystem II, psbA subunitRecombinant ProteinsRegulatory Sequences, Ribonucleic Acidribonuclease ERNA, AntisenseRNA, BacterialRNA, Messenger

Identifiers

PMID22858634
PMCPMC3461525
OpenAlexW1997346612

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.