Evidence map›Paper›PMID 16949361›Full record

ArticleMolecular cell2006

L-type Ca2+ channel facilitation mediated by phosphorylation of the beta subunit by CaMKII.

Chad E Grueter, Sunday A Abiria, Igor Dzhura, Yuejin Wu, Amy-Joan L Ham, Peter J Mohler, Mark E Anderson, Roger J Colbran

RetractedAbstract readRetracted Publication
PubMed Publisher
In one paragraph

Article in Molecular cell, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 107 papers.

0numbers the graph read from it
0cells of the map it votes in
107citing papers in PubMed
7.6field-weighted citation impact, top 2% 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

107 citing papers in PubMed, 182 citations in OpenAlex.

  1. Article
  2. Regulation of Cardiac Cav1.2 Channels by Calmodulin.International journal of molecular sciences · 2023
    Review
  3. Article
  4. Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Secretoneurin to the Rescue?: Maybe or Maybe Not.Circulation. Arrhythmia and electrophysiology · 2019
    Article
  11. Mitochondrial-Mediated Oxidative CaJournal of the American Heart Association · 2018
    Article
  12. Review
  13. Astragalus Granule Prevents CaEvidence-based complementary and alternative medicine : eCAM · 2017
    Article
  14. Ischemia/Reperfusion.Comprehensive Physiology · 2016
    Review
  15. Article
  16. Article
  17. Role of CaMKII in cardiac arrhythmias.Trends in cardiovascular medicine · 2015
    Review
  18. Article
  19. CaMKII plays a part in the chondrogenesis of bone marrow-derived mesenchymal stem cells.International journal of clinical and experimental pathology · 2015
    Article
  20. Review

47 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 1 institution in 1 country.

Chad E GrueterDepartment of Molecular Physiology and Biophysics, Vanderbilt University Medical Center, Nashville, Tennessee 37232, USA.
Sunday A Abiria
Igor Dzhura
Yuejin Wu
Amy-Joan L Ham
Peter J Mohler
Mark E Anderson
Roger J Colbran
Vanderbilt University Medical Center · US

Funding

Transcriptional remodeling in cardiac arrhythmiasP01HL046681 · NHLBI · VANDERBILT UNIVERSITY · PI GEORGE, ALFRED L. · 1992 to 2006
$8.1M
Mechanisms of CaM Kinase II Signal TransductionR01MH063232 · NIMH · VANDERBILT UNIVERSITY · PI COLBRAN, ROGER J · 2001 to 2015
$5.4M
Mitochondrial Calmodulin Kinase II in Physiology and DiseaseR01HL070250 · NHLBI · VANDERBILT UNIVERSITY · PI ANDERSON, MARK E · 2002 to 2017
$5.2M
CALMODULIN KINASE II AND EARLY AFTERDEPOLARIZATIONSR01HL062494 · NHLBI · VANDERBILT UNIVERSITY · PI ANDERSON, MARK E · 1999 to 2007
$1.8M
NHLBI NIH HHS HL062494NHLBI NIH HHS HL07411NHLBI NIH HHS HL46681NHLBI NIH HHS HL70250NIMH NIH HHS MH63232NIMH NIH HHS R01 MH063232
6 · The paper itself

Abstract

L-type Ca(2+) channels (LTCCs) are major entry points for Ca(2+) in many cells. Ca(2+)/calmodulin-dependent protein kinase II (CaMKII) is associated with cardiac LTCC complexes and increases channel open probability (P(O)) to dynamically increase Ca(2+) current (I(Ca)) and augment cellular Ca(2+) signaling by a process called facilitation. However, the critical molecular mechanisms for CaMKII localization to LTCCs and I(Ca) facilitation in cardiomyocytes have not been defined. We show CaMKII binds to the LTCC beta(2a) subunit and preferentially phosphorylates Thr498 in beta(2a). Mutation of Thr498 to Ala (T498A) in beta(2a) prevents CaMKII-mediated increases in the P(O) of recombinant LTCCs. Moreover, expression of beta(2a)(T498A) in adult cardiomyocytes ablates CaMKII-mediated I(Ca) facilitation, demonstrating that phosphorylation of beta(2a) at Thr498 modulates native calcium channels. These findings reveal a molecular mechanism for targeting CaMKII to LTCCs and facilitating I(Ca) that may modulate Ca(2+) entry in diverse cell types coexpressing CaMKII and the beta(2a) subunit.

Indexed as

Ion Channel GatingAmino Acid SequenceAnimalsCalcium-Calmodulin-Dependent Protein KinasesCalcium-Calmodulin-Dependent Protein Kinase Type 2Calcium Channels, L-TypeCells, CulturedHumansMiceMolecular Sequence DataMyocytes, CardiacPhosphorylationPhosphothreonineProtein BindingProtein SubunitsRatsCacnb2 protein, ratCalcium-Calmodulin-Dependent Protein KinasesCalcium-Calmodulin-Dependent Protein Kinase Type 2Calcium Channels, L-TypePhosphothreonineProtein SubunitsRecombinant Proteins

Identifiers

PMID16949361
OpenAlexW2040337560

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.