Evidence map›Paper›PMID 20348254›Full record

ArticleJournal of bacteriology2010

In vitro and in vivo characterization of the Pseudomonas aeruginosa cyclic AMP (cAMP) phosphodiesterase CpdA, required for cAMP homeostasis and virulence factor regulation.

Erin L Fuchs, Evan D Brutinel, Erich R Klem, Anthony R Fehr, Timothy L Yahr, Matthew C Wolfgang

Abstract read
In one paragraph

Article in Journal of bacteriology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed
3.4field-weighted citation impact, top 7% 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

62 citing papers in PubMed, 96 citations in OpenAlex.

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  15. Cyclic Nucleotide Phosphodiesterases in Alcohol Use Disorders: Involving Gut Microbiota.The international journal of neuropsychopharmacology · 2023
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2 more citing papers are in PubMed but not listed here.

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 at 2 institutions in 1 country.

Erin L FuchsCystic Fibrosis/Pulmonary Research and Treatment Center, University of North Carolina, CB 7248, Chapel Hill, NC 27599, USA.
Evan D Brutinel
Erich R Klem
Anthony R Fehr
Timothy L Yahr
Matthew C Wolfgang
University of North Carolina at Chapel Hill · USUniversity of Iowa · US

Funding

Regulation of Pseudomonas aeruginosa type III secretionR01AI055042 · NIAID · UNIVERSITY OF IOWA · PI YAHR, TIMOTHY L · 2003 to 2021
$4.4M
Cyclic AMP Signaling in Pseudomonas aeruginosa VirulenceR01AI069116 · NIAID · UNIV OF NORTH CAROLINA CHAPEL HILL · PI WOLFGANG, MATTHEW C · 2008 to 2011
$1.3M
Regulation of Pseudomonas aeruginosa type III secretionR56AI055042 · NIAID · UNIVERSITY OF IOWA · PI YAHR, TIMOTHY L · 2016 to 2016
$339k
NIAID NIH HHS AI055042NIAID NIH HHS AI069116NIAID NIH HHS R01 AI055042NIAID NIH HHS R01 AI069116NIAID NIH HHS R56 AI055042
6 · The paper itself

Abstract

Cyclic AMP (cAMP) is an important second messenger signaling molecule that controls a wide variety of eukaryotic and prokaryotic responses to extracellular cues. For cAMP-dependent signaling pathways to be effective, the intracellular cAMP concentration is tightly controlled at the level of synthesis and degradation. In the opportunistic human pathogen Pseudomonas aeruginosa, cAMP is a key regulator of virulence gene expression. To better understand the role of cAMP homeostasis in this organism, we identified and characterized the enzyme CpdA, a putative cAMP phosphodiesterase. We demonstrate that CpdA possesses 3',5'-cAMP phosphodiesterase activity in vitro and that it utilizes an iron-dependent catalytic mechanism. Deletion of cpdA results in the accumulation of intracellular cAMP and altered regulation of P. aeruginosa virulence traits. Further, we demonstrate that the cAMP-dependent transcription factor Vfr directly regulates cpdA expression in response to intracellular cAMP accumulation, thus providing a feedback mechanism for controlling cAMP levels and fine-tuning virulence factor expression.

Indexed as

3',5'-Cyclic-AMP PhosphodiesterasesADP Ribose TransferasesAmino Acid SequenceBacterial ProteinsBacterial ToxinsBlotting, WesternChromatography, GelCyclic AMPCyclic AMP Receptor ProteinDNA FootprintingElectrophoretic Mobility Shift AssayExotoxinsGene Expression Regulation, BacterialIronMolecular Sequence DataPeptide Hydrolases3',5'-Cyclic-AMP PhosphodiesterasesADP Ribose TransferasesBacterial ProteinsBacterial ToxinsCyclic AMPCyclic AMP Receptor Proteinexoenzyme SExotoxinsIronPeptide Hydrolasesprotease IVPseudomonas aeruginosa Exotoxin AVfr protein, Pseudomonas aeruginosaVirulence Factors

Identifiers

PMID20348254
PMCPMC2876501
OpenAlexW2107123644

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.