Evidence map›Paper›PMID 22948824›Full record

ArticleNature communications2012

Discovery of acetylene hydratase activity of the iron-sulphur protein IspH.

Ingrid Span, Ke Wang, Weixue Wang, Yonghui Zhang, Adelbert Bacher, Wolfgang Eisenreich, Kai Li, Charles Schulz, Eric Oldfield, Michael Groll

Open access · bronzeAbstract read
In one paragraph

Article in Nature communications, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

26 citing papers in PubMed, 44 citations in OpenAlex.

  1. Review
  2. Resonance Raman Spectroscopic Study of the Unusual [4Fe-4S]Chembiochem : a European journal of chemical biology · 2025
    Article
  3. Review
  4. Article
  5. Review
  6. Review
  7. Review
  8. Microbial (Frontiers in bioengineering and biotechnology · 2022
    Review
  9. Positioning Bacillus subtilis as terpenoid cell factory.Journal of applied microbiology · 2021
    Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
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  18. Review
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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

10 authors at 4 institutions in 2 countries.

Ingrid Span *Department of Chemistry, Center for Integrated Protein Science, Technische Universität München, Lichtenbergstrasse 4, 85747 Garching, Germany.
Ke Wang *Department of Chemistry, 600 South Mathews Avenue, University of Illinois, Urbana, Illinois 61801, USA.
Weixue WangCenter for Biophysics and Computational Biology, 607 South Mathews Avenue, University of Illinois, Urbana, Illinois 61801, USA.
Yonghui ZhangDepartment of Chemistry, 600 South Mathews Avenue, University of Illinois, Urbana, Illinois 61801, USA.
Adelbert BacherDepartment of Chemistry, Center for Integrated Protein Science, Technische Universität München, Lichtenbergstrasse 4, 85747 Garching, Germany.
Wolfgang EisenreichDepartment of Chemistry, Center for Integrated Protein Science, Technische Universität München, Lichtenbergstrasse 4, 85747 Garching, Germany.
Kai LiDepartment of Chemistry, 600 South Mathews Avenue, University of Illinois, Urbana, Illinois 61801, USA.
Charles SchulzDepartment of Physics, Knox College, 2 East South Street, Galesburg, Illinois 61401, USA.
Eric OldfieldDepartment of Chemistry, 600 South Mathews Avenue, University of Illinois, Urbana, Illinois 61801, USA.
Michael GrollDepartment of Chemistry, Center for Integrated Protein Science, Technische Universität München, Lichtenbergstrasse 4, 85747 Garching, Germany.
University of Illinois Urbana-Champaign · USTechnical University of Munich · DECenter for Integrated Protein Science Munich · DEKnox College · US

Funding

Structure, Function and Inhibition of [4Fe-4S] ProteinsR01GM065307 · NIGMS · UNIVERSITY OF ILLINOIS URBANA-CHAMPAIGN · PI OLDFIELD, ERIC · 2002 to 2017
$5.4M
Protein Structure/Function by NMR, Crystallography and Computational ChemistryR01AI074233 · NIAID · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · PI OLDFIELD, ERIC · 2008 to 2012
$1.8M
NIAID NIH HHS AI074233NIAID NIH HHS R01 AI074233NIGMS NIH HHS GM65307NIGMS NIH HHS R01 GM065307
6 · The paper itself

Abstract

The final step of the methylerythritol phosphate isoprenoid biosynthesis pathway is catalysed by the iron-sulphur enzyme IspH, producing the universal precursors of terpenes: isopentenyl diphosphate and dimethylallyl diphosphate. Here we report an unforeseen reaction discovered during the investigation of the interaction of IspH with acetylene inhibitors by X-ray crystallography, Mößbauer, and nuclear magnetic resonance spectroscopy. In addition to its role as a 2H(+)/2e(-) reductase, IspH can hydrate acetylenes to aldehydes and ketones via anti-Markovnikov/Markovnikov addition. The reactions only occur with the oxidised protein and proceed via η(1)-O-enolate intermediates. One of these is characterized crystallographically and contains a C4 ligand oxygen bound to the unique, fourth iron in the 4Fe-4S cluster: this intermediate subsequently hydrolyzes to produce an aldehyde product. This unexpected side to IspH reactivity is of interest in the context of the mechanism of action of other acetylene hydratases, as well as in the design of antiinfectives targeting IspH.

Indexed as

AcetyleneAldehydesCatalytic DomainCrystallography, X-RayEscherichia coliEscherichia coli ProteinsIronModels, MolecularMolecular StructureOxidation-ReductionOxidoreductasesAcetyleneAldehydesEscherichia coli ProteinsIronispH protein, E coliOxidoreductases

Identifiers

PMID22948824
PMCPMC3745992
OpenAlexW2039020041

What OpenQuestion holds

Textmetadata
LicenceTDM
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.