Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2008-1-8
pubmed:abstractText
The muscleblind-like (MBNL) proteins are tissue-specific alternative splicing regulators. Dysfunction of MBNL has been implicated in the pathogenesis of expanded CUG repeats-associated myotonic dystrophy (DM). In this study, we describe the identification and functional characterization of a Caenorhabditis elegans muscleblind (CeMbl) gene. CeMbl is a single gene alternatively spliced to generate two isoforms (CeMBL-A and CeMBL-B). It displays a high homology with human MBNL1 in the C3H1 zinc finger domains. CeMbl transcripts are detected in larval and adult stages. However, inactivation of CeMbl by RNA-mediated interference results in muscle phenotype only at adulthood. Immunofluorescence staining using anti-vinculin antibody reveals that the organization of dense body is disrupted in affected worms. Our results demonstrate a growth-dependent requirement of CeMbl on muscle structure and function. They also provide a possible molecular basis for the developmentally regulated toxicity of expanded CUG repeats.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
1090-2104
pubmed:author
pubmed:issnType
Electronic
pubmed:day
15
pubmed:volume
366
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
705-9
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Growth-dependent effect of muscleblind knockdown on Caenorhabditis elegans.
pubmed:affiliation
Department of Biomedical Sciences, Chung Shan Medical University, Taichung, Taiwan, ROC.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't