Evidence map›Paper›PMID 29602945›Full record

ArticleNature communications2018

Biosynthesis of fragin is controlled by a novel quorum sensing signal.

Christian Jenul, Simon Sieber, Christophe Daeppen, Anugraha Mathew, Martina Lardi, Gabriella Pessi, Dominic Hoepfner, Markus Neuburger, Anthony Linden, Karl Gademann and 1 more

Abstract read
In one paragraph

Article in Nature communications, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed
–field-weighted citation impact
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

62 citing papers in PubMed.

  1. Structural and Functional Siderophore Remodeling by Enzymatic Delipidation.Angewandte Chemie (International ed. in English) · 2026
    Article
  2. Discovery and Comprehensive Characterization ofInternational journal of molecular sciences · 2026
    Article
  3. Article
  4. Article
  5. Quorum sensing in theApplied and environmental microbiology · 2026
    Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Heme Oxygenase-Like Metalloenzymes.Annual review of biochemistry · 2025
    Review
  12. ACS chemical biology · 2025
    Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. International journal of systematic and evolutionary microbiology · 2024
    Article
  19. Article
  20. Article

2 more citing papers are in PubMed but not listed here.

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

11 authors.

Christian JenulDepartment of Plant and Microbial Biology, University of Zurich, 8008, Zurich, Switzerland.
Simon SieberDepartment of Chemistry, University of Zurich, 8057, Zurich, Switzerland.
Christophe DaeppenDepartment of Chemistry, University of Zurich, 8057, Zurich, Switzerland.
Anugraha MathewDepartment of Plant and Microbial Biology, University of Zurich, 8008, Zurich, Switzerland.
Martina LardiDepartment of Plant and Microbial Biology, University of Zurich, 8008, Zurich, Switzerland.
Gabriella PessiDepartment of Plant and Microbial Biology, University of Zurich, 8008, Zurich, Switzerland.ORCID http://orcid.org/0000-0002-8138-5541
Dominic HoepfnerNovartis Institutes for BioMedical Research, Novartis Campus, 4056, Basel, Switzerland.ORCID http://orcid.org/0000-0001-8450-7543
Markus NeuburgerDepartment of Chemistry, University of Basel, 4056, Basel, Switzerland.
Anthony LindenDepartment of Chemistry, University of Zurich, 8057, Zurich, Switzerland.ORCID http://orcid.org/0000-0002-9343-9180
Karl GademannDepartment of Chemistry, University of Zurich, 8057, Zurich, Switzerland. karl.gademann@uzh.ch.ORCID http://orcid.org/0000-0003-3053-0689
Leo EberlDepartment of Plant and Microbial Biology, University of Zurich, 8008, Zurich, Switzerland. leberl@botinst.uzh.ch.ORCID http://orcid.org/0000-0002-7241-0864

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Members of the diazeniumdiolate class of natural compounds show potential for drug development because of their antifungal, antibacterial, antiviral, and antitumor activities. Yet, their biosynthesis has remained elusive to date. Here, we identify a gene cluster directing the biosynthesis of the diazeniumdiolate compound fragin in Burkholderia cenocepacia H111. We provide evidence that fragin is a metallophore and that metal chelation is the molecular basis of its antifungal activity. A subset of the fragin biosynthetic genes is involved in the synthesis of a previously undescribed cell-to-cell signal molecule, valdiazen. RNA-Seq analyses reveal that valdiazen controls fragin biosynthesis and affects the expression of more than 100 genes. Homologs of the valdiazen biosynthesis genes are found in various bacteria, suggesting that valdiazen-like compounds may constitute a new class of signal molecules. We use structural information, in silico prediction of enzymatic functions and biochemical data to propose a biosynthesis route for fragin and valdiazen.

Indexed as

Antifungal AgentsAzo CompoundsBurkholderia cenocepaciaChelating AgentsHomeostasisMultigene FamilyQuorum SensingAntifungal AgentsAzo CompoundsChelating Agentsdiazeniumdiolate

Identifiers

PMID29602945
PMCPMC5878181

What OpenQuestion holds

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LicenceCC BY
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.