Evidence map›Paper›PMID 12202367›Full record

ArticleBiophysical journal2002

Effects of volatile anesthetic on channel structure of gramicidin A.

Pei Tang, Pravat K Mandal, Martha Zegarra

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.8field-weighted citation impact, top 30% 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

5 citing papers in PubMed, 16 citations in OpenAlex.

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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.

Pei TangDepartment of Anesthesiology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15261 USA. tangp@anes.upmc.edu
Pravat K Mandal
Martha Zegarra
University of Pittsburgh · US

Funding

WATER DISTRIB:PHYSICAL PROPERT:PIZZA &LMPS MOZZARELLA CHEESES:EARLY STAGE MATURP41RR002301 · NCRR · UNIVERSITY OF WISCONSIN-MADISON · PI MARKLEY, JOHN LUTE · 1985 to 2011
$13.0M
ANESTHETIC SITES IN TRANSMEMBRANE PEPTIDES BY NMRR01GM056257 · NIGMS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI TANG, PEI · 1998 to 2017
$4.8M
Anesthetic Sites in Transmembrane Peptides by NMRR56GM056257 · NIGMS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI TANG, PEI · 2008 to 2008
$391k
WIDE-BORE 9.4 TESLA NMR SPECTROMETER FOR UW-MADISONS10RR002781 · NCRR · UNIVERSITY OF WISCONSIN MADISON · PI MARKLEY, JOHN L · 1986 to 1986
–
CONSOLE UPGRADES FOR NMR FACILITYS10RR008438 · NCRR · UNIVERSITY OF WISCONSIN MADISON · PI MARKLEY, JOHN L · 1993 to 1993
–
NCRR NIH HHS RR02301NCRR NIH HHS RR02781NCRR NIH HHS RR08438NIGMS NIH HHS GM56257
6 · The paper itself

Abstract

Volatile anesthetic agent, 1-chloro-1,2,2-trifluorocyclobutane (F3), was found to alter gramicidin A channel function by enhancing Na(+) transport (. Biophys. J. 77:739-746). Whether this functional change is associated with structural alternation is evaluated by circular dichroism and nuclear magnetic resonance spectroscopy. The circular dichroism and nuclear magnetic resonance results indicate that at low millimolar concentrations, 1-chloro-1,2,2-trifluorocyclobutane causes minimal changes in gramicidin A channel structure in sodium dodecyl sulfate micelles. All hydrogen bonds between channel backbones are well maintained in the presence of 1-chloro-1,2,2-trifluorocyclobutane, and the channel structure is stable. The finding supports the notion that low affinity drugs such as volatile anesthetics and alcohols can cause significant changes in protein function without necessarily producing associated changes in protein structure. To understand the molecular mechanism of general anesthesia, it is important to recognize that in addition to structural changes, other protein properties, including dynamic characteristics of channel motions, may also be of functional significance.

Indexed as

Ion ChannelsAnestheticsChlorofluorocarbonsCircular DichroismCyclobutanesDose-Response Relationship, DrugGramicidinHydrogen BondingMagnetic Resonance SpectroscopyMicellesModels, MolecularProtonsSodiumSodium Dodecyl SulfateTryptophan1-chloro-1,2,2-trifluorocyclobutaneAnestheticsChlorofluorocarbonsCyclobutanesGramicidinIon ChannelsMicellesProtonsSodiumSodium Dodecyl SulfateTryptophan

Identifiers

PMID12202367
PMCPMC1302240
OpenAlexW2005142539

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.