Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2007-11-16
pubmed:abstractText
Mutations in the gene encoding calpain-3 (CAPN3) cause autosomal recessive limb-girdle muscular dystrophy type 2A (LGMD2A) and idiopathic eosinophilic myositis. Accurate diagnosis and genetic counselling are based on the identification of disease-causing mutations on both alleles of CAPN3 in the patients. In the present study, we used transcriptional analysis as a complementary approach for patients suspected of being affected with LGMD2A, in whom initial denaturing high-performance liquid chromatography genomic mutation screening evidenced no or only one CAPN3 mutation obviously considered as disease causing. This allowed to identify and characterize cDNA deletions. Further genomic analysis allowed to determine the origin of these deletions, either as splicing defects caused by intronic mutations or as an internal multi-exonic deletion. In particular, we report two novel CAPN3 mutations (c.1745 + 4_1745 + 7delAGTG in IVS13 and c.2185-16A>G in IVS20) and a recurrent large-sized genomic deletion including exons 2-8 for which genomic breakpoints have been characterized. In addition, our results indicate nonsense-mediated messenger RNA decay as a mechanism for under-expression of CAPN3 associated to some specific variations.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0009-9163
pubmed:author
pubmed:issnType
Print
pubmed:volume
72
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
582-92
pubmed:meshHeading
pubmed-meshheading:17979987-Adolescent, pubmed-meshheading:17979987-Adult, pubmed-meshheading:17979987-Aged, pubmed-meshheading:17979987-Base Sequence, pubmed-meshheading:17979987-Calpain, pubmed-meshheading:17979987-DNA Primers, pubmed-meshheading:17979987-Eosinophilia, pubmed-meshheading:17979987-Female, pubmed-meshheading:17979987-Humans, pubmed-meshheading:17979987-Male, pubmed-meshheading:17979987-Middle Aged, pubmed-meshheading:17979987-Muscle Proteins, pubmed-meshheading:17979987-Muscular Dystrophies, Limb-Girdle, pubmed-meshheading:17979987-Mutation, pubmed-meshheading:17979987-Myositis, pubmed-meshheading:17979987-RNA, Messenger, pubmed-meshheading:17979987-RNA Splicing, pubmed-meshheading:17979987-RNA Stability, pubmed-meshheading:17979987-Sequence Deletion, pubmed-meshheading:17979987-Transcription, Genetic
pubmed:year
2007
pubmed:articleTitle
Transcriptional explorations of CAPN3 identify novel splicing mutations, a large-sized genomic deletion and evidence for messenger RNA decay.
pubmed:affiliation
Département de Génétique Médicale, Hôpital d'enfants de la Timone, Marseille, France.
pubmed:publicationType
Journal Article, Case Reports, Research Support, Non-U.S. Gov't