Evidence map›Paper›PMID 22999068›Full record

ReviewTrends in cardiovascular medicine2012

L-type Ca2+ channel function during Timothy syndrome.

Rose E Dixon, Edward P Cheng, Jose L Mercado, Luis F Santana

Abstract readReview
In one paragraph

Review in Trends in cardiovascular medicine, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing 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

15 citing papers in PubMed, 24 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Mechanisms and Regulation of Cardiac CaInternational journal of molecular sciences · 2021
    Review
  5. Review
  6. Dysfunctional Cav1.2 channel in Timothy syndrome, from cell to bedside.Experimental biology and medicine (Maywood, N.J.) · 2019
    Article
  7. Review
  8. Review
  9. Review
  10. Review
  11. Review
  12. Article
  13. Genetics of long-QT syndrome.Journal of human genetics · 2016
    Review
  14. Article
  15. Article
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

4 authors at 1 institution in 1 country.

Rose E DixonDepartment of Physiology and Biophysics, University of Washington, Seattle, WA 98195, USA.
Edward P Cheng
Jose L Mercado
Luis F Santana
University of Washington · US

Funding

NFAT-induced Regional Variations in Kv4 Channel Expression in HeartR01HL085686 · NHLBI · UNIVERSITY OF WASHINGTON · PI SANTANA, LUIS F · 2007 to 2020
$5.7M
Persistent Calcium Sparklets in Vascular Smooth MuscleR01HL085870 · NHLBI · UNIVERSITY OF WASHINGTON · PI SANTANA, LUIS F · 2007 to 2016
$3.9M
NHLBI NIH HHS R01 HL085686NHLBI NIH HHS R01 HL085870
6 · The paper itself

Abstract

Voltage-gated, dihydropyridine-sensitive L-type Ca(2+) channels are multimeric proteins composed of a pore-forming transmembrane α(1) subunit (Ca(v)1.2) and accessory β, α(2)δ, and γ subunits. Ca(2+) entry via Ca(v)1.2 channels shapes the action potential (AP) of cardiac myocytes and is required for excitation-contraction coupling. Two de novo point mutations of Ca(v)1.2 glycine residues, G406R and G402S, cause a rare multisystem disorder called Timothy syndrome (TS). Here, we discuss recent work on the mechanisms by which Ca(v)1.2 channels bearing TS mutations display slowed inactivation that leads to increased Ca(2+) influx, prolonging the cardiac AP and promoting lethal arrhythmias. Based on these studies, we propose a model in which the scaffolding protein AKAP79/150 stabilizes the open conformation of Ca(v)1.2-TS channels and facilitates physical interactions among adjacent channels via their C-tails, increasing the activity of adjoining channels and amplifying Ca(2+) influx.

Indexed as

Calcium Channels, L-TypeAutistic DisorderChannelopathiesHumansLong QT SyndromeMutationMyocytes, CardiacSyndactylyCalcium Channels, L-Type

Identifiers

PMID22999068
PMCPMC3640256
OpenAlexW1975688055

What OpenQuestion holds

Textmetadata
LicenceTDM
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.