Evidence map›Paper›PMID 22958642›Full record

ArticleStructure (London, England : 1993)2012

Structure of the pentameric ligand-gated ion channel GLIC bound with anesthetic ketamine.

Jianjun Pan, Qiang Chen, Dan Willenbring, David Mowrey, Xiang-Peng Kong, Aina Cohen, Christopher B Divito, Yan Xu, Pei Tang

Open access · bronzeAbstract read
In one paragraph

Article in Structure (London, England : 1993), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed
4.4field-weighted citation impact, top 5% 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

53 citing papers in PubMed, 82 citations in OpenAlex.

  1. Review
  2. Article
  3. Ketamine Metabolite (2ACS chemical neuroscience · 2021
    Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Identification of binding sites contributing to volatile anesthetic effects on GABA type A receptors.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2018
    Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review
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 3 institutions in 1 country.

Jianjun PanDepartment of Anesthesiology, Biomedical Science Tower 3, 3501 Fifth Avenue, University of Pittsburgh School of Medicine, Pittsburgh, PA 15260, USA.
Qiang Chen
Dan Willenbring
David Mowrey
Xiang-Peng Kong
Aina Cohen
Christopher B Divito
Yan Xu
Pei Tang
University of Pittsburgh · USNew York University · USStanford Synchrotron Radiation Lightsource · US

Funding

ZWITTERION SURFACTANT DDMAB FOR IMPROV STABIL OF PROTEINP41RR001209 · NCRR · STANFORD UNIVERSITY · PI SCOTT, EMILY E · 1985 to 2011
$38.9M
X-ray Absorption Spectroscopy (XAS) pp.711-759P41GM103393 · NIGMS · STANFORD UNIVERSITY · PI HODGSON, KEITH O · 2012 to 2019
$30.6M
NMR STUDIES OF MECHANISMS OF GENERAL ANESTHESIAR37GM049202 · NIGMS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI XU, YAN · 2004 to 2013
$4.9M
Research Training in Anesthesiology and Pain MedicineT32GM075770 · NIGMS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI YAN XU · 2007 to 2026
$4.8M
ANESTHETIC SITES IN TRANSMEMBRANE PEPTIDES BY NMRR01GM056257 · NIGMS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI TANG, PEI · 1998 to 2017
$4.8M
ANESTHETIC EFFECTS ON ION CHANNEL STRUCTURES & DYNAMICSR01GM066358 · NIGMS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI TANG, PEI · 2002 to 2014
$3.6M
NCRR NIH HHS P41 RR001209NCRR NIH HHS P41RR001209NIGMS NIH HHS P41 GM103393NIGMS NIH HHS P41GM103393NIGMS NIH HHS R01 GM056257NIGMS NIH HHS R01GM056257NIGMS NIH HHS R01 GM066358NIGMS NIH HHS R01GM066358NIGMS NIH HHS R37 GM049202NIGMS NIH HHS R37GM049202NIGMS NIH HHS T32 GM075770NIGMS NIH HHS T32GM075770
6 · The paper itself

Abstract

Pentameric ligand-gated ion channels (pLGICs) are targets of general anesthetics, but a structural understanding of anesthetic action on pLGICs remains elusive. GLIC, a prokaryotic pLGIC, can be inhibited by anesthetics, including ketamine. The ketamine concentration leading to half-maximal inhibition of GLIC (58 μM) is comparable to that on neuronal nicotinic acetylcholine receptors. A 2.99 Å resolution X-ray structure of GLIC bound with ketamine revealed ketamine binding to an intersubunit cavity that partially overlaps with the homologous antagonist-binding site in pLGICs. The functional relevance of the identified ketamine site was highlighted by profound changes in GLIC activation upon cysteine substitution of the cavity-lining residue N152. The relevance is also evidenced by changes in ketamine inhibition upon the subsequent chemical labeling of N152C. The results provide structural insight into the molecular recognition of ketamine and are valuable for understanding the actions of anesthetics and other allosteric modulators on pLGICs.

Indexed as

Anesthetics, DissociativeAnimalsBacterial ProteinsBinding SitesCells, CulturedCrystallography, X-RayCyanobacteriaHydrogen-Ion ConcentrationKetamineLigand-Gated Ion ChannelsModels, MolecularOocytesProtein BindingProtein Structure, QuaternaryProtein Structure, SecondaryXenopusAnesthetics, DissociativeBacterial ProteinsKetamineLigand-Gated Ion Channels

Identifiers

PMID22958642
PMCPMC3446250
OpenAlexW2143105324

What OpenQuestion holds

Textmetadata
LicenceTDM
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.