Evidence map›Paper›PMID 9758767›Full record

ArticleApplied and environmental microbiology1998

The cytochrome c maturation operon is involved in manganese oxidation in Pseudomonas putida GB-1.

J P de Vrind, G J Brouwers, P L Corstjens, J den Dulk, E W de Vrind-de Jong

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In one paragraph

Article in Applied and environmental microbiology, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
1.0field-weighted citation impact, top 26% 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

24 citing papers in PubMed, 64 citations in OpenAlex.

  1. Article
  2. Environmental science & technology · 2025
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  7. Genome of the epiphytic bacteriumBiotechnology reports (Amsterdam, Netherlands) · 2023
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  9. Article
  10. Beyond iron: non-classical biological functions of bacterial siderophores.Dalton transactions (Cambridge, England : 2003) · 2015
    Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Iron requirement for Mn(II) oxidation by Leptothrix discophora SS-1.Applied and environmental microbiology · 2009
    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

5 authors at 1 institution in 1 country.

J P de VrindLeiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, 2300 RA Leiden, The Netherlands. vrind_j@chem.leidenuniv.nl
G J Brouwers
P L Corstjens
J den Dulk
E W de Vrind-de Jong
Leiden University · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A Pseudomonas putida strain, strain GB-1, oxidizes Mn2+ to Mn oxide in the early stationary growth phase. It also secretes a siderophore (identified as pyoverdine) when it is subjected to iron limitation. After transposon (Tn5) mutagenesis several classes of mutants with differences in Mn2+ oxidation and/or secretion of the Mn2+-oxidizing activity were identified. Preliminary analysis of the Tn5 insertion site in one of the nonoxidizing mutants suggested that a multicopper oxidase-related enzyme is involved in Mn2+ oxidation. The insertion site in another mutant was preliminarily identified as a gene involved in the general protein secretion pathway. Two mutants defective in Mn2+-oxidizing activity also secreted porphyrins into the medium and appeared to be derepressed for pyoverdine production. These strains were chosen for detailed analysis. Both mutants were shown to contain Tn5 insertions in the ccmF gene, which is part of the cytochrome c maturation operon. They were cytochrome oxidase negative and did not contain c-type cytochromes. Complementation with part of the ccm operon isolated from the wild type restored the phenotype of the parent strain. These results indicate that a functional ccm operon is required for Mn2+ oxidation in P. putida GB-1. A possible relationship between porphyrin secretion resulting from the ccm mutation and stimulation of pyoverdine production is discussed.

Indexed as

OperonAmino Acid SequenceCloning, MolecularConserved SequenceCytochrome c GroupManganeseMolecular Sequence DataOxidation-ReductionPseudomonas putidaSequence AlignmentSequence Homology, Amino AcidCytochrome c GroupManganese

Identifiers

PMID9758767
PMCPMC106464
OpenAlexW1553093295

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.