Evidence map›Paper›PMID 18512059›Full record

ArticleCurrent genetics2008

The interaction of induction, repression and starvation in the regulation of extracellular proteases in Aspergillus nidulans: evidence for a role for CreA in the response to carbon starvation.

Margaret E Katz, Stella M Bernardo, Brian F Cheetham

Abstract read
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In one paragraph

Article in Current genetics, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
2.7field-weighted citation impact, top 13% 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

26 citing papers in PubMed, 52 citations in OpenAlex.

  1. Article
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  5. Transcription FactorJournal of fungi (Basel, Switzerland) · 2022
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  7. Review
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  11. Article
  12. Nutritional Heterogeneity AmongFrontiers in microbiology · 2019
    Article
  13. Article
  14. Carbon Catabolite Repression in Filamentous Fungi.International journal of molecular sciences · 2017
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

3 authors at 2 institutions in 2 countries.

Margaret E KatzMolecular and Cellular Biology, University of New England, Armidale, NSW 2351, Australia. mkatz@une.edu.au
Stella M Bernardo
Brian F Cheetham
University of New England · AUUniversity of New Mexico · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In Aspergillus nidulans, production of extracellular proteases in response to carbon starvation and to a lesser extent nitrogen starvation is controlled by XprG, a putative transcriptional activator. In this study the role of genes involved in carbon catabolite repression and the role of protein as an inducer of extracellular protease gene expression were examined. The addition of exogenous protein to the growth medium did not increase extracellular protease activity whether or not additional carbon or nitrogen sources were present indicating that induction does not play a major role in the regulation of extracellular proteases. Northern blot analysis confirmed that protein is not an inducer of the major A. nidulans protease, PrtA. Mutations in the creA, creB and creC genes increased extracellular protease levels in medium lacking a carbon source suggesting that they may have a role in the response to carbon starvation as well as carbon catabolite repression. Analysis of glkA4 frA2 and creADelta4 mutants showed that the loss of glucose signalling or the DNA-binding protein which mediates carbon catabolite repression did not abolish glucose repression but did increase extracellular protease activity. This increase was XprG-dependent indicating that the effect of these genes may be through modulation of XprG activity.

Indexed as

Aspergillus nidulansCarbonFungal ProteinsGene Expression Regulation, FungalGenes, FungalMutationNitrogenPeptide HydrolasesRepressor ProteinsTrans-ActivatorsCarbonCreA protein, Aspergillus nidulansFungal ProteinsNitrogenPeptide HydrolasesRepressor ProteinsTrans-Activators

Identifiers

PMID18512059
OpenAlexW1982906269

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.