Evidence map›Paper›PMID 28846667›Full record

ArticleNature chemical biology2017

Klebsazolicin inhibits 70S ribosome by obstructing the peptide exit tunnel.

Mikhail Metelev, Ilya A Osterman, Dmitry Ghilarov, Nelli F Khabibullina, Alexander Yakimov, Konstantin Shabalin, Irina Utkina, Dmitry Y Travin, Ekaterina S Komarova, Marina Serebryakova and 6 more

Abstract read
In one paragraph

Article in Nature chemical biology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing 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

39 citing papers in PubMed.

  1. Article
  2. Repositioning the Leader Peptide in Graspetide Biosynthesis.Journal of the American Chemical Society · 2026
    Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Review
  8. Enterolyin S, a Polythiazole-containing Hemolytic Peptide from Enterococcus caccae.Chembiochem : a European journal of chemical biology · 2024
    Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Review
  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

16 authors.

Mikhail MetelevResearch Center of Nanobiotechnologies, Peter the Great St.Petersburg Polytechnic University, St. Petersburg, Russia.ORCID http://orcid.org/0000-0003-2829-6395
Ilya A OstermanCenter for Data-Intensive Biomedicine and Biotechnology, Skolkovo Institute of Science and Technology, Moscow, Russia.
Dmitry GhilarovCenter for Data-Intensive Biomedicine and Biotechnology, Skolkovo Institute of Science and Technology, Moscow, Russia.
Nelli F KhabibullinaDepartment of Biological Sciences, University of Illinois at Chicago, Chicago, Illinois, USA.
Alexander YakimovResearch Center of Nanobiotechnologies, Peter the Great St.Petersburg Polytechnic University, St. Petersburg, Russia.
Konstantin ShabalinPetersburg Nuclear Physics Institute, NRC Kurchatov Institute, Gatchina, Russia.
Irina UtkinaResearch Center of Nanobiotechnologies, Peter the Great St.Petersburg Polytechnic University, St. Petersburg, Russia.
Dmitry Y TravinDepartment of Bioengineering and Bioinformatics, Lomonosov Moscow State University, Moscow, Russia.
Ekaterina S KomarovaCenter for Data-Intensive Biomedicine and Biotechnology, Skolkovo Institute of Science and Technology, Moscow, Russia.
Marina SerebryakovaInstitute of Gene Biology of the Russian Academy of Sciences, Moscow, Russia.
Tatyana ArtamonovaResearch Center of Nanobiotechnologies, Peter the Great St.Petersburg Polytechnic University, St. Petersburg, Russia.
Mikhail KhodorkovskiiResearch Center of Nanobiotechnologies, Peter the Great St.Petersburg Polytechnic University, St. Petersburg, Russia.
Andrey L KonevegaResearch Center of Nanobiotechnologies, Peter the Great St.Petersburg Polytechnic University, St. Petersburg, Russia.
Petr V SergievCenter for Data-Intensive Biomedicine and Biotechnology, Skolkovo Institute of Science and Technology, Moscow, Russia.
Konstantin SeverinovResearch Center of Nanobiotechnologies, Peter the Great St.Petersburg Polytechnic University, St. Petersburg, Russia.
Yury S PolikanovDepartment of Biological Sciences, University of Illinois at Chicago, Chicago, Illinois, USA.ORCID http://orcid.org/0000-0002-5064-0327

Funding

Overall EvaluationP41GM103403 · NIGMS · CORNELL UNIVERSITY · PI EALICK, STEVEN E · 2012 to 2017
$14.3M
Exploring Peptide Conjugates as Trojan Horse Systems for Drug Design and DiscoveryR01AI117210 · NIAID · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · PI NAIR, SATISH K · 2016 to 2020
$2.2M
Pixel Array Detector for X-ray CrystallographyS10RR029205 · NCRR · CORNELL UNIVERSITY · PI EALICK, STEVEN E · 2010 to 2010
$1.8M
NCRR NIH HHS S10 RR029205NIAID NIH HHS R01 AI117210NIGMS NIH HHS P41 GM103403
6 · The paper itself

Abstract

Whereas screening of the small-molecule metabolites produced by most cultivatable microorganisms often results in the rediscovery of known compounds, genome-mining programs allow researchers to harness much greater chemical diversity, and result in the discovery of new molecular scaffolds. Here we report the genome-guided identification of a new antibiotic, klebsazolicin (KLB), from Klebsiella pneumoniae that inhibits the growth of sensitive cells by targeting ribosomes. A ribosomally synthesized post-translationally modified peptide (RiPP), KLB is characterized by the presence of a unique N-terminal amidine ring that is essential for its activity. Biochemical in vitro studies indicate that KLB inhibits ribosomes by interfering with translation elongation. Structural analysis of the ribosome-KLB complex showed that the compound binds in the peptide exit tunnel overlapping with the binding sites of macrolides or streptogramin-B. KLB adopts a compact conformation and largely obstructs the tunnel. Engineered KLB fragments were observed to retain in vitro activity, and thus have the potential to serve as a starting point for the development of new bioactive compounds.

Indexed as

Anti-Bacterial AgentsBinding SitesCloning, MolecularKlebsiella pneumoniaePeptidesProtein EngineeringRibosomesAnti-Bacterial AgentsklebsazolicinPeptides

Identifiers

PMID28846667
PMCPMC5701663

What OpenQuestion holds

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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.