Evidence map›Paper›PMID 23316732›Full record

ArticleJournal of the American Chemical Society2013

Inhibition of IspH, a [4Fe-4S]2+ enzyme involved in the biosynthesis of isoprenoids via the methylerythritol phosphate pathway.

Karnjapan Janthawornpong, Sergiy Krasutsky, Philippe Chaignon, Michel Rohmer, C Dale Poulter, Myriam Seemann

Open access · greenAbstract read
In one paragraph

Article in Journal of the American Chemical Society, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

25 citing papers in PubMed, 41 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Resonance Raman Spectroscopic Study of the Unusual [4Fe-4S]Chembiochem : a European journal of chemical biology · 2025
    Article
  5. Review
  6. Article
  7. Enantioselective Synthesis of Sealutomicin C.Journal of the American Chemical Society · 2024
    Article
  8. Review
  9. Review
  10. Microbial (Frontiers in bioengineering and biotechnology · 2022
    Review
  11. Article
  12. Article
  13. Mixed Aryl Phosphonate Prodrugs of a Butyrophilin Ligand.ACS medicinal chemistry letters · 2017
    Article
  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

6 authors at 2 institutions in 2 countries.

Karnjapan JanthawornpongUniversité de Strasbourg, CNRS UMR 7177, Institut Le Bel, 4 rue Blaise Pascal, CS 90032, 67081 Strasbourg Cedex, France.
Sergiy Krasutsky
Philippe Chaignon
Michel Rohmer
C Dale Poulter
Myriam Seemann
Université de Strasbourg · FRUniversity of Utah · US

Funding

STUDIES OF STEROL BIOSYNTHESISR01GM025521 · NIGMS · UNIVERSITY OF UTAH · PI POULTER, CHARLES DALE · 1985 to 2014
$5.9M
NIGMS NIH HHS GM 25521NIGMS NIH HHS R01 GM025521
6 · The paper itself

Abstract

The MEP pathway, which is absent in animals but present in most pathogenic bacteria, in the parasite responsible for malaria and in plant plastids, is a target for the development of antimicrobial drugs. IspH, an oxygen-sensitive [4Fe-4S] enzyme, catalyzes the last step of this pathway and converts (E)-4-hydroxy-3-methylbut-2-en-1-yl diphosphate (HMBPP) into the two isoprenoid precursors: isopentenyl diphosphate (IPP) and dimethylallyl diphosphate (DMAPP). A crucial step in the mechanism of this enzyme is the binding of the C4 hydroxyl of HMBPP to the unique fourth iron site in the [4Fe-4S](2+) moiety. Here, we report the synthesis and the kinetic investigations of two new extremely potent inhibitors of E. coli IspH where the OH group of HMBPP is replaced by an amino and a thiol group. (E)-4-Mercapto-3-methylbut-2-en-1-yl diphosphate is a reversible tight-binding inhibitor of IspH with K(i) = 20 ± 2 nM. A detailed kinetic analysis revealed that (E)-4-amino-3-methylbut-2-en-1-yl diphosphate is a reversible slow-binding inhibitor of IspH with K(i) = 54 ± 19 nM. The slow binding behavior of this inhibitor is best described by a one-step mechanism with the slow step consisting of the formation of the enzyme-inhibitor (EI) complex.

Indexed as

BiocatalysisBiosynthetic PathwaysDose-Response Relationship, DrugEnzyme InhibitorsErythritolEscherichia coli ProteinsKineticsModels, MolecularMolecular StructureOxidoreductasesStructure-Activity RelationshipSugar PhosphatesTerpenesEnzyme InhibitorsErythritolEscherichia coli ProteinsispH protein, E coliOxidoreductasesSugar PhosphatesTerpenes

Identifiers

PMID23316732
PMCPMC3644560
OpenAlexW2055222602

What OpenQuestion holds

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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.