Molecular cloning and expression analysis of dystroglycan during Xenopus laevis embryogenesis.
Gene Expr Patterns
; 2(1-2): 45-50, 2002 Nov.
Article
em En
| MEDLINE
| ID: mdl-12617836
ABSTRACT
Dystroglycan is a transmembrane receptor protein that provides a structural linkage between extracellular matrix components and cytoskeletal proteins. It was originally characterized as a member of dystrophin associated protein complex in muscle but, unlike other proteins of this complex, mutations in the dystroglycan gene have not been implicated as a cause of muscular dystrophies. Indeed, dystroglycan is an essential gene, expressed early in development that, if removed in knockout mice, provokes lethal defects before the onset of myogenesis. Dystroglycan is synthesized as a precursor propeptide that is post-translationally cleaved and glycosylated to yield alpha and beta subunits. We have cloned and characterized a cDNA clone, containing the complete coding region of the dystroglycan precursor, from a Xenopus laevis cDNA library. We have performed a spatial and temporal analysis of its expression in X. laevis embryos, using whole-mount in situ hybridization and reverse transcription-polymerase chain reaction analysis. Early expression of dystroglycan in a variety of tissues of different embryological derivation suggests a crucial role in morphogenetic events, especially during central nervous system differentiation.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Glicoproteínas de Membrana
/
Proteínas do Citoesqueleto
/
Embrião não Mamífero
Limite:
Animals
Idioma:
En
Revista:
Gene Expr Patterns
Assunto da revista:
BIOLOGIA MOLECULAR
/
CEREBRO
Ano de publicação:
2002
Tipo de documento:
Article
País de afiliação:
Itália