Evidence map›Paper›PMID 31263019›Full record

ArticleMolecular pharmacology2019

Mapping the Site of Action of Human P2X7 Receptor Antagonists AZ11645373, Brilliant Blue G, KN-62, Calmidazolium, and ZINC58368839 to the Intersubunit Allosteric Pocket.

Anfal Bin Dayel, Richard J Evans, Ralf Schmid

Open access · hybridAbstract read
In one paragraph

Article in Molecular pharmacology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
3.3field-weighted citation impact, top 8% 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

29 citing papers in PubMed, 41 citations in OpenAlex.

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  13. P2XScience advances · 2024
    Article
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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

3 authors at 1 institution in 1 country.

Anfal Bin DayelDepartment of Molecular and Cell Biology (A.B.D., R.J.E., R.S.) and Leicester Institute of Structural and Chemical Biology (R.S.), University of Leicester, Leicester, United Kingdom.
Richard J EvansDepartment of Molecular and Cell Biology (A.B.D., R.J.E., R.S.) and Leicester Institute of Structural and Chemical Biology (R.S.), University of Leicester, Leicester, United Kingdom.
Ralf SchmidDepartment of Molecular and Cell Biology (A.B.D., R.J.E., R.S.) and Leicester Institute of Structural and Chemical Biology (R.S.), University of Leicester, Leicester, United Kingdom R.Schmid@le.ac.uk.ORCID 0000-0002-0203-4023
University of Leicester · GB

Funding

Medical Research Council MR/K027018/1
6 · The paper itself

Abstract

The P2X7 receptor is a trimeric ligand-gated ion channel activated by ATP. It is implicated in the cellular response to trauma/disease and considered to have significant therapeutic potential. Using chimeras and point mutants we have mapped the binding site of the P2X7R-selective antagonist AZ11645373 to the known allosteric binding pocket at the interface between two subunits, in proximity to, but separated from the ATP binding site. Our structural model of AZ11645373 binding is consistent with effects of mutations on antagonist sensitivity, and the proposed binding mode explains variation in antagonist sensitivity between the human and rat P2X7 receptors. We have also determined the site of action for the P2X7R-selective antagonists ZINC58368839, brilliant blue G, KN-62, and calmidazolium. The effect of intersubunit allosteric pocket "signature mutants" F88A, T90V, D92A, F103A, and V312A on antagonist sensitivity suggests that ZINC58368839 comprises a binding mode similar to AZ11645373 and other previously characterized antagonists. For the larger antagonists, brilliant blue G, KN-62, and calmidazolium, our data imply an overlapping but distinct binding mode involving the central upper vestibule of the receptor in addition to the intersubunit allosteric pocket. Our work explains the site of action for a series of P2X7R antagonists and establishes "signature mutants" for P2X7R binding-mode characterization.

Indexed as

Point Mutation1-(5-Isoquinolinesulfonyl)-2-MethylpiperazineAdenosine TriphosphateAllosteric SiteAmidesBinding SitesHumansImidazolesIndolesModels, MolecularMolecular Docking SimulationPurinergic P2X Receptor AntagonistsReceptors, Purinergic P2X7Rosaniline DyesThiazoles1-(5-Isoquinolinesulfonyl)-2-MethylpiperazineAdenosine TriphosphateAmidesAZ 11645373calmidazoliumcoomassie Brilliant BlueImidazolesIndolesKN 62P2RX7 protein, humanPurinergic P2X Receptor AntagonistsReceptors, Purinergic P2X7Rosaniline DyesThiazolesZINC58368839

Identifiers

PMID31263019
PMCPMC6701605
OpenAlexW2954247725

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.