Evidence map›Paper›PMID 28977734›Full record

ArticleAngewandte Chemie (International ed. in English)2017

Biosynthesis of the Enterotoxic Pyrrolobenzodiazepine Natural Product Tilivalline.

Elisabeth Dornisch, Jakob Pletz, Ronald A Glabonjat, Florian Martin, Christian Lembacher-Fadum, Margit Neger, Christoph Högenauer, Kevin Francesconi, Wolfgang Kroutil, Klaus Zangger and 2 more

Open access · hybridAbstract read
In one paragraph

Article in Angewandte Chemie (International ed. in English), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 6% 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, 1 synthesis or guideline pooled it, 80 citations in OpenAlex.

  1. Pooled it
  2. Novel bacteriumGut microbes · 2026
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  19. Country-wide expansion of a VIM-1 carbapenemase-producing Klebsiella oxytoca ST145 lineage in Poland, 2009-2019.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2023
    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

12 authors at 3 institutions in 1 country.

Elisabeth DornischInstitute of Molecular Biosciences, University of Graz, Humboldtstrasse 50/I, 8010, Graz, Austria.
Jakob PletzInstitute of Organic Chemistry, Graz University of Technology, Stremayrgasse 9, 8010, Graz, Austria.
Ronald A GlabonjatInstitute of Chemistry, University of Graz, Heinrichstrasse 28 & Universitätsplatz 1, 8010, Graz, Austria.
Florian MartinInstitute of Molecular Biosciences, University of Graz, Humboldtstrasse 50/I, 8010, Graz, Austria.
Christian Lembacher-FadumInstitute of Organic Chemistry, Graz University of Technology, Stremayrgasse 9, 8010, Graz, Austria.
Margit NegerInstitute of Molecular Biosciences, University of Graz, Humboldtstrasse 50/I, 8010, Graz, Austria.
Christoph HögenauerDivision of Gastroenterology and Hepatology, Department of Internal Medicine, Medical University of Graz, Auenbruggerplatz 15, 8036, Graz, Austria.
Kevin FrancesconiInstitute of Chemistry, University of Graz, Heinrichstrasse 28 & Universitätsplatz 1, 8010, Graz, Austria.
Wolfgang KroutilInstitute of Chemistry, University of Graz, Heinrichstrasse 28 & Universitätsplatz 1, 8010, Graz, Austria.
Klaus ZanggerInstitute of Chemistry, University of Graz, Heinrichstrasse 28 & Universitätsplatz 1, 8010, Graz, Austria.
Rolf BreinbauerInstitute of Organic Chemistry, Graz University of Technology, Stremayrgasse 9, 8010, Graz, Austria.
Ellen L ZechnerInstitute of Molecular Biosciences, University of Graz, Humboldtstrasse 50/I, 8010, Graz, Austria.ORCID 0000-0003-2035-1898
University of Graz · ATGraz University of Technology · ATMedical University of Graz · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The nonribosomal enterotoxin tilivalline was the first naturally occurring pyrrolobenzodiazepine to be linked to disease in the human intestine. Since the producing organism Klebsiella oxytoca is part of the intestinal microbiota and the pyrrolobenzodiazepine causes the pathogenesis of colitis it is important to understand the biosynthesis and regulation of tilivalline activity. Here we report the biosynthesis of tilivalline and show that this nonribosomal peptide assembly pathway initially generates tilimycin, a simple pyrrolobenzodiazepine with cytotoxic properties. Tilivalline results from the non-enzymatic spontaneous reaction of tilimycin with biogenetically generated indole. Through a chemical total synthesis of tilimycin we could corroborate the predictions made about the biosynthesis. Production of two cytotoxic pyrrolobenzodiazepines with distinct functionalities by human gut resident Klebsiella oxytoca has important implications for intestinal disease.

Indexed as

BenzodiazepinesBiological ProductsKlebsiella oxytocaPyrrolesBenzodiazepinesBiological ProductsPyrrolespyrrolo(2,1-c)(1,4)benzodiazepinebiosynthesisgut bacterianatural productsnonribosomal peptidespyrrolobenzodiazepines

Identifiers

PMID28977734
PMCPMC5698749
OpenAlexW2761432259

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.