A novel de novo mutation in the triple helix of the COL6A3 gene in a two-generation Italian family affected by Bethlem myopathy. A diagnostic approach in the mutations' screening of type VI collagen

G. Pepe, E. Bertini, B. Giusti, T. Brunelli, P. Comeglio, B. Saitta, L. Merlini, M. L. Chu, G. Federici, R. Abbate

Research output: Contribution to journalArticle

Abstract

Bethlem myopathy is an autosomal dominant inherited disease producing a mild neuromuscular disorder, mainly characterized by muscular weakness and multiple joint contractures. Bethlem myopathy is caused by mutations in one of the three chains of collagen type VI. Here we report the clinical description and the molecular characterization of the defect in a two-generation Italian family in which a Gly→Arg substitution disrupts the triple helix structure of the α3 chain of collagen type VI, an ubiquitous glycoprotein of the extracellular matrix. In this family the identification of the mutation also allowed one to exclude the disease in the grandfather. It is noteworthy that the father of the proband carries a de novo mutation, the first described for Bethlem myopathy. Copyright (C) 1999 Elsevier Science B.V.

Original languageEnglish
Pages (from-to)264-271
Number of pages8
JournalNeuromuscular Disorders
Volume9
Issue number4
DOIs
Publication statusPublished - Jun 1 1999

Fingerprint

Collagen Type VI
Mutation
Genes
Muscle Weakness
Contracture
Fathers
Extracellular Matrix
Glycoproteins
Joints
Bethlem myopathy

Keywords

  • Bethlem myopathy
  • Collagen type VI
  • Extracellular matrix

ASJC Scopus subject areas

  • Clinical Neurology
  • Pediatrics, Perinatology, and Child Health
  • Developmental Neuroscience
  • Neurology

Cite this

A novel de novo mutation in the triple helix of the COL6A3 gene in a two-generation Italian family affected by Bethlem myopathy. A diagnostic approach in the mutations' screening of type VI collagen. / Pepe, G.; Bertini, E.; Giusti, B.; Brunelli, T.; Comeglio, P.; Saitta, B.; Merlini, L.; Chu, M. L.; Federici, G.; Abbate, R.

In: Neuromuscular Disorders, Vol. 9, No. 4, 01.06.1999, p. 264-271.

Research output: Contribution to journalArticle

Pepe, G. ; Bertini, E. ; Giusti, B. ; Brunelli, T. ; Comeglio, P. ; Saitta, B. ; Merlini, L. ; Chu, M. L. ; Federici, G. ; Abbate, R. / A novel de novo mutation in the triple helix of the COL6A3 gene in a two-generation Italian family affected by Bethlem myopathy. A diagnostic approach in the mutations' screening of type VI collagen. In: Neuromuscular Disorders. 1999 ; Vol. 9, No. 4. pp. 264-271.
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AU - Giusti, B.

AU - Brunelli, T.

AU - Comeglio, P.

AU - Saitta, B.

AU - Merlini, L.

AU - Chu, M. L.

AU - Federici, G.

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