Evidence map›Paper›PMID 22453924›Full record

ArticleThe Journal of biological chemistry2012

Novel mutation in spectrin-like repeat 1 of dystrophin central domain causes protein misfolding and mild Becker muscular dystrophy.

Gyula Acsadi, Steven A Moore, Angélique Chéron, Olivier Delalande, Lindsey Bennett, William Kupsky, Mohammad El-Baba, Elisabeth Le Rumeur, Jean-François Hubert

Open access · hybridAbstract readCase Reports
In one paragraph

Article in The Journal of biological chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 20% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 citations in OpenAlex.

  1. Becker muscular dystrophy: case report, review of the literature, and analysis of differentially expressed hub genes.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2022
    Pooled it
  2. Article
  3. Review
  4. Review
  5. BiallelicGenes · 2021
    Article
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  7. Article
  8. Article
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  11. Dystrophin insufficiency causes selective muscle histopathology and loss of dystrophin-glycoprotein complex assembly in pig skeletal muscle.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2014
    Article
  12. Article
  13. 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

9 authors at 6 institutions in 2 countries.

Gyula AcsadiConnecticut Children's Medical Center, Hartford, Connecticut 06106, USA.
Steven A Moore
Angélique Chéron
Olivier Delalande
Lindsey Bennett
William Kupsky
Mohammad El-Baba
Elisabeth Le Rumeur
Jean-François Hubert
Wayne State University · USCentre National de la Recherche Scientifique · FRUniversité de Rennes · FRUniversité Européenne de Bretagne · FRUniversity of Connecticut · USUniversity of Iowa · US

Funding

Therapeutic Potential of ESC-Derived Myogenic PrecursorsU54NS053672 · NINDS · UNIVERSITY OF IOWA · PI CAMPBELL, KEVIN P. · 2005 to 2019
$22.0M
NINDS NIH HHS U54 NS053672
6 · The paper itself

Abstract

Mutations in the dystrophin gene without disruption of the reading frame often lead to Becker muscular dystrophy, but a genotype/phenotype correlation is difficult to establish. Amino acid substitutions may disrupt binding capacities of dystrophin and have a major impact on the functionality of this protein. We have identified two brothers (ages 8 and 10 years) with very mild proximal weakness, recurrent abdominal pain, and moderately elevated serum creatine kinase levels. Gene sequencing revealed a novel mutation in exon 11 of the dystrophin gene (c.1280T>C) leading to a L427P amino acid substitution in repeat 1 of the central rod domain. Immunostaining of skeletal muscle showed weak staining of the dystrophin region encoded by exons 7 and 8 corresponding to the end of the actin-binding domain 1 and the N-terminal part of hinge 1. Spectrofluorescence and circular dichroism analysis of the domain repeat 1-2 (R1-2) revealed partial misfolding of the L427P mutated protein as well as a reduced refolding rate after denaturation. Based on computational homology models of the wild-type and mutated R1-2, a molecular dynamics study showed an alteration in the flexibility of the structure, which also strongly affects the conformational space available in the N-terminal region of the fragment. Our results suggest that this missense mutation hinders the dynamic properties of the entire N-terminal region of dystrophin.

Indexed as

MutationAmino Acid SequenceChildCircular DichroismDystrophinElectrophoresis, Polyacrylamide GelHumansImmunohistochemistryMaleModels, MolecularMolecular Sequence DataMuscular Dystrophy, DuchenneProtein DenaturationProtein FoldingSequence Homology, Amino AcidSpectrinDystrophinSpectrin

Identifiers

PMID22453924
PMCPMC3365720
OpenAlexW2170588418

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.