Cited by 168Muscle Physiology and DisordersGenomics and Rare DiseasesCardiomyopathy and Myosin Studies

Identification of KLHL41 Mutations Implicates BTB-Kelch-Mediated Ubiquitination as an Alternate Pathway to Myofibrillar Disruption in Nemaline Myopathy

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Gupta, Vandana A., Ravenscroft, Gianina, Shaheen, Ranad, Todd, Emily J., Swanson, Lindsay C., Shiina, Masaaki, Ogata, Kazuhiro, Hsu, Cynthia +22 more·2013·The American Journal of Human Genetics

Abstract

Nemaline myopathy (NM) is a rare congenital muscle disorder primarily affecting skeletal muscles that results in neonatal death in severe cases as a result of associated respiratory insufficiency. NM is thought to be a disease of sarcomeric thin filaments as six of eight known genes whose mutation can cause NM encode components of that structure, however, recent discoveries of mutations in non-thin filament genes has called this model in question. We performed whole-exome sequencing and have identified recessive small deletions and missense changes in the Kelch-like family member 41 gene (KLHL41) in four individuals from unrelated NM families. Sanger sequencing of 116 unrelated individuals with NM identified compound heterozygous changes in KLHL41 in a fifth family. Mutations in KLHL41 showed a clear phenotype-genotype correlation: Frameshift mutations resulted in severe phenotypes with neonatal death, whereas missense changes resulted in impaired motor function with survival into late childhood and/or early adulthood. Functional studies in zebrafish showed that loss of Klhl41 results in highly diminished motor function and myofibrillar disorganization, with nemaline body formation, the pathological hallmark of NM. These studies expand the genetic heterogeneity of NM and implicate a critical role of BTB-Kelch family members in maintenance of sarcomeric integrity in NM.

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Authors
Gupta, V. A., Ravenscroft, G., Shaheen, R., Todd, E. J., Swanson, L. C., Shiina, M., Ogata, K., Hsu, C., Clarke, N. F., Darras, B. T., Farrar, M. A., Hashem, A., Manton, N. D., Muntoni, F., North, K. N., Sandaradura, S. A., Nishino, I., Hayashi, Y. K., Sewry, C. A., Thompson, E. M., Yau, K. S., Brownstein, C. A., Yu, T. W., Allcock, R. J. N., Davis, M. R., Wallgren-Pettersson, C., Matsumoto, N., Alkuraya, F. S., Laing, N. G., & Beggs, A. H.
Affiliations
  • Boston Children's Hospital (US)
  • The University of Western Australia (AU)
  • King Faisal Specialist Hospital & Research Centre (SA)
  • Yokohama City University (JP)
  • The University of Sydney (AU)
  • Sydney Children's Hospital (AU)
  • South Australia Pathology (AU)
  • Royal Children's Hospital (AU)
  • National Center of Neurology and Psychiatry (JP)
  • Great Ormond Street Hospital (GB)
  • Royal Perth Hospital (AU)
Corresponding author
Beggs, Alan H.
Venue
The American Journal of Human Genetics
Publisher
Elsevier BV
Published
2013-12
Volume
93
Issue
6
Pages
1108-1117
ISSN
0002-9297 (ISSN-L)
OpenAlex
W1973202003
Cited by
168
References
35
Citations by year
2026: 6 · 2025: 8 · 2024: 12 · 2023: 8 · 2022: 9 · 2021: 10 · 2020: 11 · 2019: 15 · 2018: 22 · 2017: 12 · 2016: 16 · 2015: 16 · 2014: 23
FWCI
8.22
Type
journal article
Language
en
Open access
Locations
  • The American Journal of Human Genetics (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • UWA Profiles and Research Repository (UWA) (submittedVersion, other-oa)
  • Adelaide Research & Scholarship (AR&S) (University of Adelaide) (submittedVersion)
  • UCL Discovery (University College London) (submittedVersion)
Funders
  • Muscular Dystrophy Association (MDA 201302)
  • Rosetrees Trust
  • Great Ormond Street Hospital Charity
  • National Institutes of Health (HD18655)
  • Medical Research Council (MR/K000608/1)
  • National Health and Medical Research Council (1022707, 1002147, 1035955)
  • Japan Society for the Promotion of Science (24118005, 24249019)
  • National Heart, Lung, and Blood Institute
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (K01AR062601, R01AR044345)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (P30HD018655, P30HD-18655)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomics and Rare Diseases
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiomyopathy and Myosin Studies
Keywords
nemaline myopathy, ubiquitination, myofibrillar disorganization, nemaline bodies, genetic heterogeneity, compound heterozygosity, frameshift mutation, missense mutations, zebrafish model, motor function, congenital muscle disease
MeSH terms
Adolescent, Animals, Child, Child, Preschool, Cytoskeletal Proteins, Female, Humans, Infant, Infant, Newborn, Male, Models, Molecular, Mutation, Myofibrils, Protein Conformation, Proteins, Zebrafish, Signal Transduction, Gene Expression, Myopathies, Nemaline, Fatal Outcome, Muscle, Skeletal, Gene Order, Protein Interaction Domains and Motifs, Ubiquitination, Genetic Association Studies

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