Evidence map›Paper›PMID 27935479›Full record

ArticleeLife2016

Structural basis for subtype-specific inhibition of the P2X7 receptor.

Akira Karasawa, Toshimitsu Kawate

Open access · goldAbstract read
In one paragraph

Article in eLife, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 160 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
160citing papers in PubMed, 1 pooled it
21.4field-weighted citation impact, top 1% 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

160 citing papers in PubMed, 1 synthesis or guideline pooled it, 296 citations in OpenAlex.

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100 more citing papers are in PubMed but not listed here.

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

2 authors at 1 institution in 1 country.

Akira KarasawaDepartment of Molecular Medicine, Cornell University, Ithaca, United States.
Toshimitsu KawateDepartment of Molecular Medicine, Cornell University, Ithaca, United States.ORCID 0000-0002-5005-2031
Cornell University · US

Funding

Structure and Function of Pannexins: Activation MechanismR01GM114379 · NIGMS · CORNELL UNIVERSITY · PI KAWATE, TOSHIMITSU · 2015 to 2025
$3.1M
Structure/function of P2X receptors: ion access pathway and selectivity mechanismR00NS072869 · NINDS · CORNELL UNIVERSITY · PI KAWATE, TOSHIMITSU · 2011 to 2013
$729k
NIGMS NIH HHS R01 GM114379NINDS NIH HHS R00 NS072869
6 · The paper itself

Abstract

The P2X7 receptor is a non-selective cation channel activated by extracellular adenosine triphosphate (ATP). Chronic activation of P2X7 underlies many health problems such as pathologic pain, yet we lack effective antagonists due to poorly understood mechanisms of inhibition. Here we present crystal structures of a mammalian P2X7 receptor complexed with five structurally-unrelated antagonists. Unexpectedly, these drugs all bind to an allosteric site distinct from the ATP-binding pocket in a groove formed between two neighboring subunits. This novel drug-binding pocket accommodates a diversity of small molecules mainly through hydrophobic interactions. Functional assays propose that these compounds allosterically prevent narrowing of the drug-binding pocket and the turret-like architecture during channel opening, which is consistent with a site of action distal to the ATP-binding pocket. These novel mechanistic insights will facilitate the development of P2X7-specific drugs for treating human diseases.

Indexed as

AnimalsCrystallography, X-RayHumansModels, MolecularProtein BindingProtein ConformationPurinergic P2X Receptor AntagonistsReceptors, Purinergic P2X7Purinergic P2X Receptor AntagonistsReceptors, Purinergic P2X7allosteric inhibitionATP-gated ion channelsbiophysicsneuroscienceP2X7 receptorstructural biologyX-ray structure

Identifiers

PMID27935479
PMCPMC5176352
OpenAlexW2559826741

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.