Evidence map›Paper›PMID 8580321›Full record

ArticleBiophysical journal1995

Description of modal gating of the cardiac calcium release channel in planar lipid membranes.

A Zahradníková, I Zahradník

Abstract read
In one paragraph

Article in Biophysical journal, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
–field-weighted citation impact
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

30 citing papers in PubMed.

  1. Modulation of KFrontiers in pharmacology · 2020
    Article
  2. Molecular basis for allosteric regulation of the type 2 ryanodine receptor channel gating by key modulators.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
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  19. Ryanodine receptor adaptation.The Journal of general physiology · 2000
    Review
  20. Questions about adaptation in ryanodine receptors.The Journal of general physiology · 2000
    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

2 authors.

A ZahradníkováInstitute of Molecular Physiology and Genetics, Slovak Academy of Sciences, Bratislava, Slovak Republic.
I Zahradník

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Single channel activity of the cardiac ryanodine-sensitive calcium-release channel in planar lipid membranes was studied in order to elucidate the calcium-dependent mechanism of its steady-state behavior. The single channel kinetics, observed with Cs+ as the charge carrier at different activating (cis) Ca2+ concentrations in the absence of ATP and Mg2+, were similar to earlier reports and were extended by analysis of channel modal behavior. The channel displayed three episodic levels of open probability defining three gating modes: H (high activity), L (low activity), and I (no activity). The large difference in open probabilities between the two active modes resulted from different bursting patterns and different proportions of two distinct channel open states. I-mode was without openings and can be regarded as the inactivated mode of the channel; L-mode was composed of short and sparse openings; and H-mode openings were longer and grouped into bursts. Modal gating may explain calcium-release channel adaptation (as transient prevalence of H-mode after Ca2+ binding) and the inhibitory effects of drugs (as stabilization of mode I), and it provides a basis for understanding the regulation of calcium release.

Indexed as

Adaptation, PhysiologicalAnimalsBiophysical PhenomenaBiophysicsCalciumCalcium ChannelsDogsIn Vitro TechniquesIon Channel GatingKineticsMembrane LipidsMuscle ProteinsMyocardiumRyanodine Receptor Calcium Release ChannelCalciumCalcium ChannelsMembrane LipidsMuscle ProteinsRyanodine Receptor Calcium Release Channel

Identifiers

PMID8580321
PMCPMC1236411

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.