Evidence map›Paper›PMID 40541978›Full record

ArticleScientific reports2025

A genetically tractable branch of environmental Pedobacter from the phylum Bacteroidota represents a hotspot for natural product discovery.

Yang Liu, Luis Linares-Otoya, Christian Kersten, Michael Marner, Sanja Mihajlovic, Mohamed H Abdeldayem, Sandra Semmler, Molly C Bletz, Miguel Vences, Marius Spohn and 2 more

Abstract read
In one paragraph

Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Article
  2. 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

12 authors.

Yang Liu *Institute for Insect Biotechnology with Focus on Natural Product Research, Justus- Liebig-University Giessen, Ohlebergsweg 12, 35392, Giessen, Germany.
Luis Linares-Otoya *Institute for Insect Biotechnology with Focus on Natural Product Research, Justus- Liebig-University Giessen, Ohlebergsweg 12, 35392, Giessen, Germany.
Christian KerstenInstitute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg University Mainz, 55128, Mainz, Germany.
Michael MarnerInstitute for Insect Biotechnology with Focus on Natural Product Research, Justus- Liebig-University Giessen, Ohlebergsweg 12, 35392, Giessen, Germany.
Sanja MihajlovicNatural Product Department, Fraunhofer-Institute for Molecular Biology and Applied Ecology (IME-BR), Ohlebergsweg 12, 35392, Giessen, Germany.
Mohamed H AbdeldayemInstitute for Insect Biotechnology with Focus on Natural Product Research, Justus- Liebig-University Giessen, Ohlebergsweg 12, 35392, Giessen, Germany.
Sandra SemmlerNatural Product Department, Fraunhofer-Institute for Molecular Biology and Applied Ecology (IME-BR), Ohlebergsweg 12, 35392, Giessen, Germany.
Molly C BletzDepartment of Environmental Conservation, University of Massachusetts Amherst, Amherst, MA, USA.
Miguel VencesZoological Institute, Technische Universität Braunschweig, Mendelssohnstr. 4, 38106, Braunschweig, Germany.
Marius SpohnInstitute for Insect Biotechnology with Focus on Natural Product Research, Justus- Liebig-University Giessen, Ohlebergsweg 12, 35392, Giessen, Germany.
Celine M ZumkellerInstitute for Insect Biotechnology with Focus on Natural Product Research, Justus- Liebig-University Giessen, Ohlebergsweg 12, 35392, Giessen, Germany. celine.zumkeller@ime.fraunhofer.de.
Till F SchäberleInstitute for Insect Biotechnology with Focus on Natural Product Research, Justus- Liebig-University Giessen, Ohlebergsweg 12, 35392, Giessen, Germany. Till.F.Schaeberle@agrar.uni-giessen.de.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Emerging global challenges, such as antimicrobial resistance, have shifted the focus of natural product discovery from well-characterized microbial producers to underexplored taxonomic groups. Here, we computationally and experimentally characterize the biosynthetic potential of the genus Pedobacter, a Bacteroidota taxon known for antibiotic production that harbors numerous uncharacterized secondary metabolite (SM)-encoding biosynthetic gene clusters (BGCs). Through phylogenomic analysis of the genus Pedobacter, we identify a distinct clade enriched in lipopeptide-associated BGCs, most of which lack known chemical products. By developing de novo genetic tools and integrating metabolomics, we linked specific secondary metabolites to their corresponding BGCs. Using synthetic and analytical chemistry as proof of concept, we isolated and structurally characterized twelve linear lipopeptides (cryopeptins A-N), containing rare dehydrovalines from Pedobacter cryoconitis PAMC 27485. We demonstrate that all cryopeptins, despite their structural heterogeneity, are biosynthesized by a single multi-domain non-ribosomal peptide synthetase (NRPS) gene cluster. Mechanistically, we propose that this BGC drives chemical diversity through combinatorial fatty acid incorporation and iterative amino acid assembly, resulting in variable peptide chain lengths. This work highlights the biosynthetic versatility of Pedobacter and outlines methods for genetic manipulation in this genus to systematically access its cryptic natural product repertoire.

Indexed as

BacteroidetesBiological ProductsPedobacterBacterial ProteinsBiosynthetic PathwaysLipopeptidesMetabolomicsMultigene FamilyPeptide SynthasesPhylogenySecondary MetabolismBacterial ProteinsBiological ProductsLipopeptidesnon-ribosomal peptide synthasePeptide SynthasesBacteroidotaBiosynthetic gene clusters (BGCs)DehydrovalineLipopeptidesNatural productsNRPSPedobacter

Identifiers

PMID40541978
PMCPMC12181424

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Registered trials

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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.