Evidence map›Paper›PMID 9829942›Full record

ArticleJournal of bacteriology1998

A homolog of CcpA mediates catabolite control in Listeria monocytogenes but not carbon source regulation of virulence genes.

J Behari, P Youngman

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Journal of bacteriology, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
4.0field-weighted citation impact, top 6% 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

36 citing papers in PubMed, 73 citations in OpenAlex.

  1. Article
  2. The Global Regulator CcpA ofFrontiers in microbiology · 2022
    Article
  3. Article
  4. Listeriolysin O: from bazooka to Swiss army knife.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2017
    Review
  5. Transcriptomic Analysis of the Adaptation ofFrontiers in microbiology · 2017
    Article
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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

2 authors at 1 institution in 1 country.

J BehariDepartment of Genetics, University of Georgia, Athens, Georgia 30602, USA.
P Youngman
University of Georgia · US

Funding

REGULATION OF DEVELOPMENT GENES IN BACILLUS SUBTILISR01GM035495 · NIGMS · UNIVERSITY OF PENNSYLVANIA · PI YOUNGMAN, PHILIP J · 1985 to 1997
–
NIGMS NIH HHS GM35495
6 · The paper itself

Abstract

Readily utilizable sugars down-regulate virulence gene expression in Listeria monocytogenes, which has led to the proposal that this regulation may be an aspect of global catabolite regulation (CR). We recently demonstrated that the metabolic enzyme alpha-glucosidase is under CR in L. monocytogenes. Here, we report the cloning and characterization from L. monocytogenes of an apparent ortholog of ccpA, which encodes an important mediator of CR in several low-G+C-content gram-positive bacteria. L. monocytogenes ccpA (ccpALm) is predicted to encode a 335-amino-acid protein with nearly 65% identity to the gene product of Bacillus subtilis ccpA (ccpABs). Southern blot analysis with a probe derived from ccpALm revealed a single strongly hybridizing band and also a second band of much lower intensity, suggesting that there may be other closely related sequences in the L. monocytogenes chromosome, as is the case in B. subtilis. Disruption of ccpALm resulted in the inability of the mutant to grow on glucose-containing minimal medium or increase its growth rate in the presence of preferred sugars, and it completely eliminated CR of alpha-glucosidase activity in liquid medium. However, alpha-glucosidase activity was only partially relieved from CR on solid medium. These results suggest that ccpA is an important element of carbon source regulation in L. monocytogenes. Nevertheless, utilizable sugars still down-regulate the expression of hly, which encodes the virulence factor hemolysin, in a ccpALm mutant, indicating that CcpA is not involved in carbon source regulation of virulence genes.

Indexed as

Genes, Bacterialalpha-GlucosidasesAmino Acid SequenceBacterial ProteinsBase SequenceCarbohydrate MetabolismCloning, MolecularDNA, BacterialDNA-Binding ProteinsDNA PrimersDown-RegulationGene Expression Regulation, BacterialHemolysin ProteinsHumansListeria monocytogenesMolecular Sequence Dataalpha-GlucosidasesBacterial Proteinscatabolite control proteins, bacteriaDNA, BacterialDNA-Binding ProteinsDNA PrimersHemolysin ProteinsRepressor Proteins

Identifiers

PMID9829942
PMCPMC107718
OpenAlexW1959078018

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.