A gene related to caenorhabditis elegans spermatogenesis factor fer-1 is mutated in limb-girdle muscular dystrophy type 2B

Rumaisa Bashir, Stephen Britton, Tom Strachan, Sharon Keers, Elizabeth Vafiadaki, Majlinda Lako, Isabelle Richard, Sylvie Marchand, Nathalie Bourg, Zohar Argov, Menachem Sadeh, Ibrahim Mahjneh, Giampiero Marconi, Maria Rita Passos-Bueno, Eloisa De S. Moreira, Mayana Zatz, Jacques S. Beckmann, Kate Bushby

Research output: Contribution to journalArticlepeer-review

Abstract

The limb-girdle muscular dystrophies are a genetically heterogeneous group of inherited progressive muscle disorders that affect mainly the proximal musculature, with evidence for at least three autosomal dominant and eight autosomal recessive loci. The latter mostly involve mutations in genes encoding components of the dystrophinassociated complex; another form is caused by mutations in the gene for the muscle-specific protease calpain 3. Using a positional cloning approach, we have identified the gene for a form of limb-girdle muscular dystrophy that we previously mapped to chromosome 2p13 (LGMD2B). This gene shows no homology to any known mammalian gene, but its predicted product is related to the C. elegans spermatogenesis factor fer-1. We have identified two homozygous frameshift mutations in this gene, resulting in muscular dystrophy of either proximal or distal onset in nine families. The proposed name 'dysferlin' combines the role of the gene in producing muscular dystrophy with its C. elegans homology.

Original languageEnglish
Pages (from-to)37-42
Number of pages6
JournalNature Genetics
Volume20
Issue number1
DOIs
StatePublished - 1998
Externally publishedYes

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