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Neuromuscul Disord. 2005 Jan;15(1):40-4.

Deletion of the LMNA initiator codon leading to a neurogenic variant of autosomal dominant Emery-Dreifuss muscular dystrophy.

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Friedrich-Baur-Institute, Gene Center and Department of Neurology, Ludwig-Maximilians-University of Munich, Munich, Germany.


Mutations in the LMNA gene encoding the nuclear envelope protein, lamins A and C, have been associated with at least nine distinct disorders now called laminopathies, including Emery-Dreifuss muscular dystrophy and Charcot-Marie-Tooth type 2 disease. We identified a novel mutation in the 5' region of the LMNA gene -3del15, resulting in the loss of 15 nucleotides from -3 to +12, including the translation ATG initiator codon. The mutation segregates in a previously described family with a clinical phenotype that shared features of both Emery-Dreifuss muscular dystrophy and Charcot-Marie-Tooth type 2. Thus, the mutation with this unique phenotypical expression represents the first example for a link between the neurogenic and myogenic phenotypes and extends the clinical variability of laminopathies.

[Indexed for MEDLINE]

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