Evidence map›Paper›PMID 22458570›Full record

ArticleBMC medical genetics2012

Functional effects of the TMEM43 Ser358Leu mutation in the pathogenesis of arrhythmogenic right ventricular cardiomyopathy.

Revathi Rajkumar, John C Sembrat, Barbara McDonough, Christine E Seidman, Ferhaan Ahmad

Open access · goldAbstract read
In one paragraph

Article in BMC medical genetics, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.1field-weighted citation impact, top 19% 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

14 citing papers in PubMed, 21 citations in OpenAlex.

  1. Decreased RYR2 Cluster Size and Abnormal SR CaAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
  2. Review
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  11. Article
  12. Pathogenesis of Arrhythmogenic Cardiomyopathy.The Canadian journal of cardiology · 2015
    Review
  13. Article
  14. Incessant left ventricular tachycardia of unusual etiology.Indian pacing and electrophysiology journal
    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

5 authors at 3 institutions in 1 country.

Revathi RajkumarUPMC Heart and Vascular Institute, Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA.
John C Sembrat
Barbara McDonough
Christine E Seidman
Ferhaan Ahmad
Howard Hughes Medical Institute · USUniversity of Pittsburgh Medical Center · USUniversity of Pittsburgh · US

Funding

Gene networks beyond organ boundaries; heart, lung and pulmonary vascular diseaseU01HL108642 · NHLBI · YALE UNIVERSITY · PI AHMAD, FERHAAN, BENOS, PANAGIOTIS V · 2011 to 2014
$2.2M
Molecular Mechanisms of Pulmonary Hypertension in COPDR03HL095401 · NHLBI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI AHMAD, FERHAAN · 2009 to 2010
$152k
Howard Hughes Medical InstituteNHLBI NIH HHS R03 HL095401NHLBI NIH HHS U01 HL108642
6 · The paper itself

Abstract

backgroundThe Ser358Leu mutation in TMEM43, encoding an inner nuclear membrane protein, has been implicated in arrhythmogenic right ventricular cardiomyopathy (ARVC). The pathogenetic mechanisms of this mutation are poorly understood.

methodsTo determine the frequency of TMEM43 mutations as a cause of ARVC, we screened 11 ARVC families for mutations in TMEM43 and five desmosomal genes previously implicated in the disease. Functional studies were performed in COS-7 cells transfected with wildtype, mutant, and 1:2 wildtype:mutant TMEM43 to determine the effect of the Ser358Leu mutation on the stability and cellular localization of TMEM43 and other nuclear envelope and desmosomal proteins, assessed by solubility assays and immunofluorescence imaging. mRNA expression was assessed of genes potentially affected by dysfunction of the nuclear lamina.

resultsThree novel mutations in previously documented desmosomal genes, but no mutations in TMEM43, were identified. COS-7 cells transfected with mutant TMEM43 exhibited no change in desmosomal stability. Stability and nuclear membrane localization of mutant TMEM43 and of lamin B and emerin were normal. Mutant TMEM43 did not alter the expression of genes located on chromosome 13, previously implicated in nuclear envelope protein mutations leading to skeletal muscular dystrophies.

conclusionsMutant TMEM43 exhibits normal cellular localization and does not disrupt integrity and localization of other nuclear envelope and desmosomal proteins. The pathogenetic role of TMEM43 mutations in ARVC remains uncertain.

Indexed as

AnimalsArrhythmogenic Right Ventricular DysplasiaChlorocebus aethiopsCOS CellsGenetic Predisposition to DiseaseGenetic TestingGenetic VectorsHumansMembrane ProteinsMicroscopy, FluorescenceMutation, MissenseReal-Time Polymerase Chain ReactionTransfectionMembrane ProteinsTMEM43 protein, human

Identifiers

PMID22458570
PMCPMC3352248
OpenAlexW2108781403

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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.