Evidence map›Paper›PMID 21851087›Full record

ArticleJournal of medicinal chemistry2011

Dihydroquinazolines as a novel class of Trypanosoma brucei trypanothione reductase inhibitors: discovery, synthesis, and characterization of their binding mode by protein crystallography.

Stephen Patterson, Magnus S Alphey, Deuan C Jones, Emma J Shanks, Ian P Street, Julie A Frearson, Paul G Wyatt, Ian H Gilbert, Alan H Fairlamb

Open access · bronzeAbstract read
In one paragraph

Article in Journal of medicinal chemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
9.1field-weighted citation impact, top 2% 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

43 citing papers in PubMed, 130 citations in OpenAlex.

  1. Review
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  12. Targeting Trypanothione Metabolism in Trypanosomatids.Molecules (Basel, Switzerland) · 2024
    Review
  13. Article
  14. Article
  15. Article
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  17. Review
  18. Article
  19. Article
  20. Efficient Dimerization Disruption ofJournal of medicinal chemistry · 2021
    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

9 authors at 1 institution in 1 country.

Stephen PattersonDivision of Biological Chemistry and Drug Discovery, College of Life Sciences, University of Dundee , Dow Street, Dundee DD1 5EH, U.K.
Magnus S Alphey
Deuan C Jones
Emma J Shanks
Ian P Street
Julie A Frearson
Paul G Wyatt
Ian H Gilbert
Alan H Fairlamb
Walter and Eliza Hall Institute of Medical Research · AU

Funding

Wellcome Trust 077705Wellcome Trust 07938Wellcome Trust 079838Wellcome Trust 083481
6 · The paper itself

Abstract

Trypanothione reductase (TryR) is a genetically validated drug target in the parasite Trypanosoma brucei , the causative agent of human African trypanosomiasis. Here we report the discovery, synthesis, and development of a novel series of TryR inhibitors based on a 3,4-dihydroquinazoline scaffold. In addition, a high resolution crystal structure of TryR, alone and in complex with substrates and inhibitors from this series, is presented. This represents the first report of a high resolution complex between a noncovalent ligand and this enzyme. Structural studies revealed that upon ligand binding the enzyme undergoes a conformational change to create a new subpocket which is occupied by an aryl group on the ligand. Therefore, the inhibitor, in effect, creates its own small binding pocket within the otherwise large, solvent exposed active site. The TryR-ligand structure was subsequently used to guide the synthesis of inhibitors, including analogues that challenged the induced subpocket. This resulted in the development of inhibitors with improved potency against both TryR and T. brucei parasites in a whole cell assay.

Indexed as

Cell LineCrystallography, X-RayDrug DesignHumansLigandsNADH, NADPH OxidoreductasesProtein BindingProtein ConformationQuinazolinesRecombinant ProteinsStereoisomerismStructure-Activity RelationshipTrypanocidal AgentsTrypanosoma brucei bruceiTrypanosoma cruziLigandsNADH, NADPH OxidoreductasesQuinazolinesRecombinant ProteinsTrypanocidal Agentstrypanothione reductase

Identifiers

PMID21851087
PMCPMC3188286
OpenAlexW1966365776

What OpenQuestion holds

Textmetadata
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.