Evidence map›Paper›PMID 10051660›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America1999

Ca2+-induced inhibition of the cardiac Ca2+ channel depends on calmodulin.

N Qin, R Olcese, M Bransby, T Lin, L Birnbaumer

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 115 papers.

0numbers the graph read from it
0cells of the map it votes in
115citing papers in PubMed
9.6field-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

115 citing papers in PubMed, 277 citations in OpenAlex.

  1. Article
  2. Article
  3. Metal Ions Within the Neuro-Immune-Tumor Axis.Journal of immunology research · 2026
    Review
  4. Hydrogen production by a fullyDalton transactions (Cambridge, England : 2003) · 2024
    Article
  5. Article
  6. Calmodulin Mutations in Human Disease.Channels (Austin, Tex.) · 2023
    Review
  7. Regulation of Cardiac Cav1.2 Channels by Calmodulin.International journal of molecular sciences · 2023
    Review
  8. Article
  9. Review
  10. CaThe Journal of biological chemistry · 2020
    Article
  11. Conformational ensembles of non-peptide ω-conotoxin mimetics and CaComputational and structural biotechnology journal · 2020
    Article
  12. Article
  13. CaCells · 2019
    Review
  14. How CaThe Journal of general physiology · 2019
    Article
  15. Article
  16. Stac Proteins Suppress CaThe Journal of neuroscience : the official journal of the Society for Neuroscience · 2018
    Article
  17. Duplex signaling by CaM and Stac3 enhances CaThe Journal of general physiology · 2018
    Article
  18. Article
  19. Conservation of cardiac L-type CaJournal of molecular and cellular cardiology · 2018
    Article
  20. Bilobal architecture is a requirement for calmodulin signaling to CaProceedings of the National Academy of Sciences of the United States of America · 2018
    Article

55 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

5 authors at 1 institution in 1 country.

N QinDepartment of Anesthesiology, University of California, Los Angeles, CA 90095-1778, USA.
R Olcese
M Bransby
T Lin
L Birnbaumer
University of California, Los Angeles · US

Funding

STRUCTURE/FUNCTION ANALYSIS OF VOLTAGE-GATED CA CHANNELSR01AR043411 · NIAMS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI BIRNBAUMER, LUTZ · 1994 to 1998
–
NIAMS NIH HHS AR43411
6 · The paper itself

Abstract

Ca2+-induced inhibition of alpha1C voltage-gated Ca2+ channels is a physiologically important regulatory mechanism that shortens the mean open time of these otherwise long-lasting high-voltage-activated channels. The mechanism of action of Ca2+ has been a matter of some controversy, as previous studies have proposed the involvement of a putative Ca2+-binding EF hand in the C terminus of alpha1C and/or a sequence downstream from this EF-hand motif containing a putative calmodulin (CaM)-binding IQ motif. Previously, using site directed mutagenesis, we have shown that disruption of the EF-hand motif does not remove Ca2+ inhibition. We now show that the IQ motif binds CaM and that disruption of this binding activity prevents Ca2+ inhibition. We propose that Ca2+ entering through the voltage-gated pore binds to CaM and that the Ca/CaM complex is the mediator of Ca2+ inhibition.

Indexed as

Amino Acid SequenceAnimalsBinding SitesCalciumCalcium ChannelsCalmodulinFemaleGlutathione TransferaseHeartMembrane PotentialsMutagenesis, Site-DirectedOocytesProtein ConformationRecombinant Fusion ProteinsRecombinant ProteinsXenopus laevisCalciumCalcium ChannelsCalmodulinGlutathione TransferaseRecombinant Fusion ProteinsRecombinant Proteins

Identifiers

PMID10051660
PMCPMC26802
OpenAlexW2055098453

What OpenQuestion holds

Texttitle and abstract
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.