Evidence map›Paper›PMID 21594947›Full record

ArticleProtein science : a publication of the Protein Society2011

Backdoor opening mechanism in acetylcholinesterase based on X-ray crystallography and molecular dynamics simulations.

Benoît Sanson, Jacques-Philippe Colletier, Yechun Xu, P Therese Lang, Hualiang Jiang, Israel Silman, Joel L Sussman, Martin Weik

Abstract read
In one paragraph

Article in Protein science : a publication of the Protein Society, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing 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

31 citing papers in PubMed.

  1. Acetylcholinesterase: Structure, dynamics, and interactions with organophosphorus compounds.Protein science : a publication of the Protein Society · 2025
    Review
  2. Article
  3. Article
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  5. Article
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  10. Review
  11. Article
  12. Review
  13. Counteracting poisoning with chemical warfare nerve agents.Arhiv za higijenu rada i toksikologiju · 2020
    Review
  14. A Second Look at the Crystal Structures ofMolecules (Basel, Switzerland) · 2020
    Article
  15. Article
  16. Article
  17. Article
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  19. Review
  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

8 authors.

Benoît SansonComissariat à l'Energie Atomique, Institut de Biologie Structurale, F-38054 Grenoble, France.
Jacques-Philippe Colletier
Yechun Xu
P Therese Lang
Hualiang Jiang
Israel Silman
Joel L Sussman
Martin Weik

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The transient opening of a backdoor in the active-site wall of acetylcholinesterase, one of nature's most rapid enzymes, has been suggested to contribute to the efficient traffic of substrates and products. A crystal structure of Torpedo californica acetylcholinesterase in complex with the peripheral-site inhibitor aflatoxin is now presented, in which a tyrosine at the bottom of the active-site gorge rotates to create a 3.4-Å wide exit channel. Molecular dynamics simulations show that the opening can be further enlarged by movement of Trp84. The crystallographic and molecular dynamics simulation data thus point to the interface between Tyr442 and Trp84 as the key element of a backdoor, whose opening permits rapid clearance of catalysis products from the active site. Furthermore, the crystal structure presented provides a novel template for rational design of inhibitors and reactivators, including anti-Alzheimer drugs and antidotes against organophosphate poisoning.

Indexed as

AcetylcholinesteraseAflatoxinsAnimalsCatalytic DomainCholinesterase InhibitorsCrystallography, X-RayFish ProteinsMolecular Dynamics SimulationProtein BindingTorpedoAcetylcholinesteraseAflatoxinsCholinesterase InhibitorsFish Proteins

Identifiers

PMID21594947
PMCPMC3149184

What OpenQuestion holds

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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.