Evidence map›Paper›PMID 21262961›Full record

ArticleThe Journal of biological chemistry2011

Localization of the dantrolene-binding sequence near the FK506-binding protein-binding site in the three-dimensional structure of the ryanodine receptor.

Ruiwu Wang, Xiaowei Zhong, Xing Meng, Andrea Koop, Xixi Tian, Peter P Jones, Bradley R Fruen, Terence Wagenknecht, Zheng Liu, S R Wayne Chen

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
3.2field-weighted citation impact, top 7% 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

23 citing papers in PubMed, 55 citations in OpenAlex.

  1. Trial
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  6. Synergistic FRET assays for drug discovery targeting RyR2 channels.Journal of molecular and cellular cardiology · 2022
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  9. Emerging pathways driving early synaptic pathology in Alzheimer's disease.Biochemical and biophysical research communications · 2017
    Review
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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

10 authors at 5 institutions in 2 countries.

Ruiwu WangLibin Cardiovascular Institute of Alberta, Department of Physiology & Pharmacology, University of Calgary, Calgary, Alberta T2N 4N1, Canada.
Xiaowei Zhong
Xing Meng
Andrea Koop
Xixi Tian
Peter P Jones
Bradley R Fruen
Terence Wagenknecht
Zheng Liu
S R Wayne Chen
Libin Cardiovascular Institute of Alberta · CAUniversity of Calgary · CANew York State Department of Health · USUniversity of Minnesota · USWadsworth Center · US

Funding

ZERNIKE PHASE-CONTRAST IMAGINGP41RR001219 · NCRR · WADSWORTH CENTER · PI WAGENKNECHT, TERENCE C · 1985 to 2010
$11.1M
STRUCTURE OF CHANNELS IN EXCITATION/CONTRACTION COUPLINGR01AR040615 · NIAMS · WADSWORTH CENTER · PI WAGENKNECHT, TERENCE C · 1991 to 2014
$5.6M
Molecular Basis of Cardiac Arrhythmia and Sudden DeathR01HL075210 · NHLBI · UNIVERSITY OF CALGARY · PI CHEN, SUI RONG WAYNE · 2005 to 2013
$2.6M
Structural Basis of Dysfunctional Calcium Release Channels in Heart DiseaseR01HL095541 · NHLBI · WADSWORTH CENTER · PI LIU, ZHENG · 2010 to 2013
$1.5M
Molecular interactions regulating RyR Ca2+ channelsR01HL076433 · NHLBI · UNIVERSITY OF MINNESOTA TWIN CITIES · PI FRUEN, BRADLEY R. · 2005 to 2008
$1.4M
CIHRNCRR NIH HHS P41 RR001219NCRR NIH HHS P41RR01219NHLBI NIH HHS R01 HL075210NHLBI NIH HHS R01 HL076433NHLBI NIH HHS R01HL076433NHLBI NIH HHS R01 HL095541NHLBI NIH HHS R01HL095541NIAMS NIH HHS R01 AR040615NIAMS NIH HHS R01AR040615
6 · The paper itself

Abstract

Dantrolene is believed to stabilize interdomain interactions between the NH2-terminal and central regions of ryanodine receptors by binding to the NH2-terminal residues 590-609 in skeletal ryanodine receptor (RyR1) and residues 601-620 in cardiac ryanodine receptor (RyR2). To gain further insight into the structural basis of dantrolene action, we have attempted to localize the dantrolene-binding sequence in RyR1/RyR2 by using GFP as a structural marker and three-dimensional cryo-EM. We inserted GFP into RyR2 after residues Arg-626 and Tyr-846 to generate GFP-RyR2 fusion proteins, RyR2Arg-626-GFP and RyR2Tyr-846-GFP. Insertion of GFP after residue Arg-626 abolished the binding of a bulky GST- or cyan fluorescent protein-tagged FKBP12.6 but not the binding of a smaller, nontagged FKBP12.6, suggesting that residue Arg-626 and the dantrolene-binding sequence are located near the FKBP12.6-binding site. Using cryo-EM, we have mapped the three-dimensional location of Tyr-846-GFP to domain 9, which is also adjacent to the FKBP12.6-binding site. To further map the three-dimensional location of the dantrolene-binding sequence, we generated 10 FRET pairs based on four known three-dimensional locations (FKBP12.6, Ser-437-GFP, Tyr-846-GFP, and Ser-2367-GFP). Based on the FRET efficiencies of these FRET pairs and the corresponding distance relationships, we mapped the three-dimensional location of Arg-626-GFP or -cyan fluorescent protein, hence the dantrolene-binding sequence, to domain 9 near the FKBP12.6-binding site but distant to the central region around residue Ser-2367. An allosteric mechanism by which dantrolene stabilizes interdomain interactions between the NH2-terminal and central regions is proposed.

Indexed as

Binding SitesCalciumCell LineCryoelectron MicroscopyDantroleneFluorescence Recovery After PhotobleachingFluorescence Resonance Energy TransferHumansImmunoblottingImmunoprecipitationProtein BindingRyanodine Receptor Calcium Release ChannelTacrolimus Binding ProteinsCalciumDantroleneRyanodine Receptor Calcium Release ChannelTacrolimus Binding Proteins

Identifiers

PMID21262961
PMCPMC3069424
OpenAlexW2092793033

What OpenQuestion holds

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Read underepoch 390

Registered trials

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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.