Evidence map›Paper›PMID 11157957›Full record

ArticleJournal of bacteriology2001

Multiple catalase genes are differentially regulated in Aspergillus nidulans.

L Kawasaki, J Aguirre

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
9.1field-weighted citation impact, top 2% 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

45 citing papers in PubMed, 139 citations in OpenAlex.

  1. The Catalase GeneJournal of fungi (Basel, Switzerland) · 2024
    Article
  2. Catalase from the Antarctic FungusIndian journal of microbiology · 2023
    Article
  3. Article
  4. Increasing NADPH impairs fungal HBioresources and bioprocessing · 2022
    Article
  5. Nitroreductase Increases Menadione-Mediated Oxidative Stress inApplied and environmental microbiology · 2021
    Article
  6. Article
  7. HJournal of fungi (Basel, Switzerland) · 2021
    Article
  8. Article
  9. Review
  10. Comparative Analysis of ROS Network Genes in Extremophile Eukaryotes.International journal of molecular sciences · 2020
    Article
  11. Article
  12. Article
  13. Oxidative damage induced by HWorld journal of microbiology & biotechnology · 2019
    Article
  14. Article
  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

2 authors at 1 institution in 1 country.

L KawasakiDepartamento de Genética Molecular, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, 04510 México, D. F., Mexico.
J Aguirre
Universidad Nacional Autónoma de México · MX

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Detoxification of hydrogen peroxide is a fundamental aspect of the cellular antioxidant responses in which catalases play a major role. Two differentially regulated catalase genes, catA and catB, have been studied in Aspergillus nidulans. Here we have characterized a third catalase gene, designated catC, which predicts a 475-amino-acid polypeptide containing a peroxisome-targeting signal. With a molecular mass of 54 kDa, CatC shows high similarity to other small-subunit monofunctional catalases and is most closely related to catalases from other fungi, Archaea, and animals. In contrast, the CatA (approximately 84 kDa) and CatB (approximately 79 kDa) enzymes belong to a family of large-subunit catalases, constituting a unique fungal and bacterial group. The catC gene displayed a relatively constant pattern of expression, not being induced by oxidative or other types of stress. Targeted disruption of catC eliminated a constitutive catalase activity not detected previously in zymogram gels. However, a catalase activity detected in catA catB mutant strains during late stationary phase was still present in catC and catABC null mutants, thus demonstrating the presence of a fourth catalase, here named catalase D (CatD). Neither catC nor catABC triple mutants showed any developmental defect, and both mutants grew as well as wild-type strains in H(2)O(2)-generating substrates, such as fatty acids, and/or purines as the sole carbon and nitrogen sources, respectively. CatD activity was induced during late stationary phase by glucose starvation, high temperature, and, to a lesser extent, H(2)O(2) treatment. The existence of at least four differentially regulated catalases indicates a large and regulated capability for H(2)O(2) detoxification in filamentous fungi.

Indexed as

Gene Expression Regulation, FungalGenes, FungalAmino Acid SequenceAspergillus nidulansCatalaseCell CompartmentationCloning, MolecularHydrogen PeroxideInactivation, MetabolicIsoenzymesMolecular Sequence DataMutagenesisProtein Sorting SignalsProtein TransportSequence Homology, Amino AcidCatalaseHydrogen PeroxideIsoenzymesProtein Sorting Signals

Identifiers

PMID11157957
PMCPMC95018
OpenAlexW2072174424

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.