Cited by 162Connective tissue disorders researchGenomics and Rare DiseasesMuscle Physiology and Disorders

The DOI matches its Crossref record; 47 of the 49 references it cites were found in a registry or an index.

Mutations in FKBP14 Cause a Variant of Ehlers-Danlos Syndrome with Progressive Kyphoscoliosis, Myopathy, and Hearing Loss

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Abstract

We report on an autosomal-recessive variant of Ehlers-Danlos syndrome (EDS) characterized by severe muscle hypotonia at birth, progressive scoliosis, joint hypermobility, hyperelastic skin, myopathy, sensorineural hearing impairment, and normal pyridinoline excretion in urine. Clinically, the disorder shares many features with the kyphoscoliotic type of EDS (EDS VIA) and Ullrich congenital muscular dystrophy. Linkage analysis in a large Tyrolean kindred identified a homozygous frameshift mutation in FKBP14 in two affected individuals. Based on the cardinal clinical characteristics of the disorder, four additional individuals originating from different European countries were identified who carried either homozygous or compound heterozygous mutations in FKBP14. FKBP14 belongs to the family of FK506-binding peptidyl-prolyl cis-trans isomerases (PPIases). ER-resident FKBPs have been suggested to act as folding catalysts by accelerating cis-trans isomerization of peptidyl-prolyl bonds and to act occasionally also as chaperones. We demonstrate that FKBP14 is localized in the endoplasmic reticulum (ER) and that deficiency of FKBP14 leads to enlarged ER cisterns in dermal fibroblasts in vivo. Furthermore, indirect immunofluorescence of FKBP14-deficient fibroblasts indicated an altered assembly of the extracellular matrix in vitro. These findings suggest that a disturbance of protein folding in the ER affecting one or more components of the extracellular matrix might cause the generalized connective tissue involvement in this disorder. FKBP14 mutation analysis should be considered in all individuals with apparent kyphoscoliotic type of EDS and normal urinary pyridinoline excretion, in particular in conjunction with sensorineural hearing impairment.

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Crossref · 10.1016/j.ajhg.2011.12.004

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  1. Cadle, 1985, Phenotypic Ehlers-Danlos type VI with normal lysyl hydroxylase activity and macrocephaly, Am. J. Hum. Genet., 37, A48
  2. Zoppi, 2008, FAK-independent αvβ3 integrin-paxillin-EGFR complexes rescue from anoikis matrix-defective fibroblasts. Biochim. Biophys. Acta, Mol. Cell Res., 1783, 1177

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Metadata

Authors
Baumann, M., Giunta, C., Krabichler, B., Rüschendorf, F., Zoppi, N., Colombi, M., Bittner, R. E., Quijano-Roy, S., Muntoni, F., Cirak, S., Schreiber, G., Zou, Y., Hu, Y., Romero, N. B., Carlier, R. Y., Amberger, A., Deutschmann, A., Straub, V., Rohrbach, M., Steinmann, B., Rostásy, K., Karall, D., Bönnemann, C. G., Zschocke, J., & Fauth, C.
Affiliations
  • Innsbruck Medical University (AT)
  • University Children's Hospital Zurich (CH)
  • Max Delbrück Center (DE)
  • University of Brescia (IT)
  • Medical University of Vienna (AT)
  • Université de Versailles Saint-Quentin-en-Yvelines (FR)
  • Klinikum Kassel (DE)
  • National Institutes of Health (US)
  • Institut de Myologie (FR)
  • Assistance Publique – Hôpitaux de Paris (FR)
  • Newcastle University (GB)
Corresponding author
  • Baumann, Matthias
  • Fauth, Christine
Venue
The American Journal of Human Genetics
Publisher
Elsevier BV
Published
2012-02
Volume
90
Issue
2
Pages
201-216
ISSN
0002-9297 (ISSN-L)
OpenAlex
W2112474407
Cited by
162
References
49
Citations by year
2026: 5 · 2025: 11 · 2024: 9 · 2023: 4 · 2022: 12 · 2021: 13 · 2020: 13 · 2019: 11 · 2018: 10 · 2017: 13 · 2016: 13 · 2015: 16 · 2014: 13 · 2013: 13 · 2012: 6
FWCI
9.22
Type
journal article
Language
en
Open access
Locations
  • The American Journal of Human Genetics (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
  • Institutional Research Information System (Università degli Studi di Brescia) (submittedVersion)
  • Zurich Open Repository and Archive (University of Zurich) (submittedVersion)
Funders
  • Rosetrees Trust
  • Great Ormond Street Hospital Charity
  • Great Ormond Street Hospital for Children
  • Gottfried und Julia Bangerter-Rhyner-Stiftung
  • Muscular Dystrophy UK
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Connective tissue disorders research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomics and Rare Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
Keywords
Ehlers-Danlos syndrome, kyphoscoliosis, myopathy, sensorineural hearing loss, Ullrich congenital muscular dystrophy, peptidyl-prolyl isomerase, endoplasmic reticulum, protein folding, extracellular matrix, compound heterozygosity, frameshift mutation, connective tissue diseases, fibroblasts
MeSH terms
Abnormalities, Multiple, Adolescent, Amino Acids, Child, Child, Preschool, Ehlers-Danlos Syndrome, Endoplasmic Reticulum, Extracellular Matrix, Female, Fibroblasts, Heterozygote, Homozygote, Humans, Male, Middle Aged, Phenotype, Genetic Variation, Frameshift Mutation, Protein Folding, Peptidylprolyl Isomerase, cis-trans-Isomerases, Hearing Loss

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