Evidence map›Paper›PMID 15292143›Full record

ArticleJournal of bacteriology2004

Differential regulation of soluble and membrane-bound inorganic pyrophosphatases in the photosynthetic bacterium Rhodospirillum rubrum provides insights into pyrophosphate-based stress bioenergetics.

Rosa L López-Marqués, José R Pérez-Castiñeira, Manuel Losada, Aurelio Serrano

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.1field-weighted citation impact, top 25% 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

13 citing papers in PubMed, 46 citations in OpenAlex.

  1. Review
  2. Article
  3. Vacuolar Proton Pyrophosphatase Is Required for High Magnesium Tolerance inInternational journal of molecular sciences · 2018
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Pyrophosphate-fueled Na+ and H+ transport in prokaryotes.Microbiology and molecular biology reviews : MMBR · 2013
    Review
  10. Article
  11. Article
  12. Article
  13. 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

4 authors at 1 institution in 1 country.

Rosa L López-MarquésInstituto de Bioquímica Vegetal y Fotosíntesis, Universidad de Sevilla-CSIC, 41092 Seville, Spain.
José R Pérez-Castiñeira
Manuel Losada
Aurelio Serrano
Instituto de Bioquímica Vegetal y Fotosíntesis · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Soluble and membrane-bound inorganic pyrophosphatases (sPPase and H(+)-PPase, respectively) of the purple nonsulfur bacterium Rhodospirillum rubrum are differentially regulated by environmental growth conditions. Both proteins and their transcripts were found in cells of anaerobic phototrophic batch cultures along all growth phases, although they displayed different time patterns. However, in aerobic cells that grow in the dark, which exhibited the highest growth rates, Northern and Western blot analyses as well as activity assays demonstrated high sPPase levels but no H(+)-PPase. It is noteworthy that H(+)-PPase is highly expressed in aerobic cells under acute salt stress (1 M NaCl). H(+)-PPase was also present in anaerobic cells growing at reduced rates in the dark under either fermentative or anaerobic respiratory conditions. Since H(+)-PPase was detected not only under all anaerobic growth conditions but also under salt stress in aerobiosis, the corresponding gene is not invariably repressed by oxygen. Primer extension analyses showed that, under all anaerobic conditions tested, the R. rubrum H(+)-PPase gene utilizes two activator-dependent tandem promoters, one with an FNR-like sequence motif and the other with a RegA motif, whereas in aerobiosis under salt stress, the H(+)-PPase gene is transcribed from two further tandem promoters involving other transcription factors. These results demonstrate a tight transcriptional regulation of the H(+)-PPase gene, which appears to be induced in response to a variety of environmental conditions, all of which constrain cell energetics.

Indexed as

Gene Expression Regulation, BacterialAdaptation, PhysiologicalAerobiosisAnaerobiosisBacterial ProteinsBase SequenceBlotting, NorthernBlotting, WesternDiphosphatesDNA, BacterialEnergy MetabolismInorganic PyrophosphataseLightMembrane ProteinsMolecular Sequence DataOsmotic PressureBacterial ProteinsDiphosphatesDNA, BacterialInorganic PyrophosphataseMembrane ProteinsRNA, BacterialRNA, Messenger

Identifiers

PMID15292143
PMCPMC490873
OpenAlexW2160464610

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.