Evidence map›Paper›PMID 7532112›Full record

ArticleCurrent genetics1994

Nitrogen, carbon, and pH regulation of extracellular acidic proteases of Aspergillus niger.

G Jarai, F Buxton

Abstract read
PubMed Publisher
In one paragraph

Article in Current genetics, 1994. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
4.6field-weighted citation impact, top 5% 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

29 citing papers in PubMed, 90 citations in OpenAlex.

  1. Regulation of nutrient utilization in filamentous fungi.Applied microbiology and biotechnology · 2023
    Review
  2. Article
  3. Article
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  6. Article
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  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Cuticle-degrading proteases produced by the entomopathogenic fungus Beauveria bassiana in the presence of coffee berry borer cuticle.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2008
    Article
  16. Article
  17. Regulation of gene expression by ambient pH in filamentous fungi and yeasts.Microbiology and molecular biology reviews : MMBR · 2002
    Review
  18. Article
  19. Aspergillus enzymes involved in degradation of plant cell wall polysaccharides.Microbiology and molecular biology reviews : MMBR · 2001
    Review
  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

2 authors at 1 institution in 1 country.

G JaraiDepartment of Biotechnology, Ciba-Geigy AG, Basel, Switzerland.
F Buxton
Novartis (Switzerland) · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aspergillus niger secretes a number of enzymes, including proteases, into its culture fluid. The regulation of the two major acidic extracellular proteases, pepA and pepB, was investigated using Northern analyses. Our data suggest that the regulation of pepA and pepB expression occurs predominantly at the level of mRNA content and that, while they are regulated in a similar manner, differences are also clear in their expression. Both genes were found to be under complex regulatory control. The expression of the two genes could be turned off by the presence of good nitrogen or carbon sources in the media, and external protein sources did not induce expression of either gene under conditions of carbon and nitrogen repression. The pH of the medium also played a major role in their regulation as the expression of both genes was completely turned off under alkaline conditions, even when grown in media lacking good nitrogen and carbon sources but containing proteins. We isolated clones containing 5' non-coding sequences of the pepA gene from a lambda genomic library with a pepA specific probe. Analysis and comparison of the promoter sequences of the pepA and pepB genes revealed that both contain several putative AREA- and CREA-binding sites and they also share an 18-bp-long sequence which is 83% identical in these two genes.

Indexed as

Aspartic Acid EndopeptidasesAspergillus nigerBase SequenceCarbonDNADNA, FungalDNA ProbesEndopeptidasesGene Expression Regulation, EnzymologicGene Expression Regulation, FungalGenes, FungalHydrogen-Ion ConcentrationMolecular Sequence DataNitrogenPromoter Regions, GeneticRNAAspartic Acid Endopeptidasesaspergillopepsin ICarbonDNADNA, FungalDNA ProbesEndopeptidasesNitrogenRNARNA, FungalRNA, Messenger

Identifiers

PMID7532112
OpenAlexW2072344937

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.