Evidence map›Paper›PMID 18487335›Full record

ArticleJournal of bacteriology2008

Role of the global transcriptional regulator PrrA in Rhodobacter sphaeroides 2.4.1: combined transcriptome and proteome analysis.

Jesus M Eraso, Jung Hyeob Roh, Xiaohua Zeng, Stephen J Callister, Mary S Lipton, Samuel Kaplan

Abstract readComparative Study
In one paragraph

Article in Journal of bacteriology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
–field-weighted citation impact
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

30 citing papers in PubMed.

  1. Article
  2. The blue light-dependent LOV-protein LdaP ofFrontiers in microbiology · 2024
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  19. Regulation of bacterial photosynthesis genes by the small noncoding RNA PcrZ.Proceedings of the National Academy of Sciences of the United States of America · 2012
    Article
  20. Review
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

6 authors.

Jesus M ErasoDepartment of Microbiology and Molecular Genetics, University of Texas Health Science Center, 6431 Fannin, Houston, Texas 77030, USA.
Jung Hyeob Roh
Xiaohua Zeng
Stephen J Callister
Mary S Lipton
Samuel Kaplan

Funding

INDUCTION AND BIOGENESIS OF SUBCELLULAR ORGANELLESR01GM015590 · NIGMS · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI KAPLAN, SAMUEL · 1985 to 2008
$3.0M
NIGMS NIH HHS GM15590NIGMS NIH HHS R01 GM015590
6 · The paper itself

Abstract

The PrrBA two-component regulatory system is a major global regulator in Rhodobacter sphaeroides 2.4.1. Here we have compared the transcriptome and proteome profiles of the wild-type (WT) and mutant PrrA2 cells grown anaerobically in the dark with dimethyl sulfoxide as an electron acceptor. Approximately 25% of the genes present in the PrrA2 genome are regulated by PrrA at the transcriptional level, either directly or indirectly, by twofold or more relative to the WT. The genes affected are widespread throughout all COG (cluster of orthologous group) functional categories, with previously unsuspected "metabolic" genes affected in PrrA2 cells. PrrA was found to act as both an activator and a repressor of transcription, with more genes being repressed in the presence of PrrA (9:5 ratio). An analysis of the genes encoding the 1,536 peptides detected through our chromatographic study, which corresponds to 36% coverage of the genome, revealed that approximately 20% of the genes encoding these proteins were positively regulated, whereas approximately 32% were negatively regulated by PrrA, which is in excellent agreement with the percentages obtained for the whole-genome transcriptome profile. In addition, comparison of the transcriptome and proteome mean parameter values for WT and PrrA2 cells showed good qualitative agreement, indicating that transcript regulation paralleled the corresponding protein abundance, although not one for one. The microarray analysis was validated by direct mRNA measurement of randomly selected genes that were both positively and negatively regulated. lacZ transcriptional and kan translational fusions enabled us to map putative PrrA binding sites and revealed potential gene targets for indirect regulation by PrrA.

Indexed as

Gene Expression ProfilingAnaerobiosisArtificial Gene FusionBacterial Proteinsbeta-GalactosidaseDarknessGene DeletionGene Expression Regulation, BacterialGenes, ReporterKanamycin ResistanceOligonucleotide Array Sequence AnalysisProteomeRhodobacter sphaeroidesRNA, BacterialRNA, MessengerBacterial Proteinsbeta-GalactosidaseProteomeRNA, BacterialRNA, Messenger

Identifiers

PMID18487335
PMCPMC2447010

What OpenQuestion holds

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Registered trials

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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.