| Literature DB >> 15351423 |
Tána Chrobáková1, Markéta Hermanová, Iva Kroupová, Petr Vondrácek, Tat'ána Maríková, Radim Mazanec, Josef Zámecník, Jan Stanek, Miluse Havlová, Lenka Fajkusová.
Abstract
Calpain3 (CAPN3, p94) is a muscle-specific nonlysosomal cysteine proteinase. Loss of proteolytic function or change of other properties of this enzyme (such as stability or ability to interact with other muscular proteins) is manifested as limb girdle muscular dystrophy type 2A (LGMD2A, calpainopathy). These pathological changes in properties of calpain3 are caused by mutations in the calpain3 gene. The fact that the human gene for calpain3 is quite long led us to analyse its coding sequence by reverse transcription-PCR followed by sequence analysis. This study reports nine mutations that we found by analysing mRNA of seven unrelated LGMD patients in the Czech Republic. Three of these mutations were novel, not described on the Leiden muscular dystrophy pages so far. Further, we observed a reduction of dysferlin in muscle membrane in five of our seven LGMD2A patients by immunohistochemical analysis of muscle sections.Entities:
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Year: 2004 PMID： 15351423 DOI： 10.1016/j.nmd.2004.05.005
Source DB: PubMed Journal: Neuromuscul Disord ISSN： 0960-8966 Impact factor: 4.296