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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1995-8-8
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pubmed:abstractText |
The segmented mesoderm in vertebrates gives rise to a variety of cell types in the embryo including the axial skeleton and muscle. A number of transcription factors containing a paired domain (Pax proteins) are expressed in the segmented mesoderm during embryogenesis. These include Pax-3 and a closely related gene, Pax-7, both of which are expressed in the segmental plate and in the dermomyotome. In this paper, we show that signals from the notochord pattern the expression of Pax-3, Pax-7 and Pax-9 in somites and the subsequent differentiation of cell types that arise from the somitic mesoderm. We directly assess the role of the Pax-3 gene in the differentiation of cell types derived from the dermomyotome by analyzing the development of muscle in splotch mouse embryos which lack a functional Pax-3 gene. A population of Pax-3-expressing cells derived from the dermomyotome that normally migrate into the limb are absent in homozygous splotch embryos and, as a result, limb muscles are lost. No abnormalities were detected in the trunk musculature of splotch embryos indicating that Pax-3 is necessary for the development of the limb but not trunk muscle.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/DNA-Binding Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Paired Box Transcription Factors,
http://linkedlifedata.com/resource/pubmed/chemical/Pax3 protein, mouse,
http://linkedlifedata.com/resource/pubmed/chemical/Transcription Factors
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pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
0950-1991
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
120
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
957-71
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:7600971-Animals,
pubmed-meshheading:7600971-Cell Differentiation,
pubmed-meshheading:7600971-Central Nervous System,
pubmed-meshheading:7600971-Chick Embryo,
pubmed-meshheading:7600971-DNA-Binding Proteins,
pubmed-meshheading:7600971-Gene Expression Regulation, Developmental,
pubmed-meshheading:7600971-In Situ Hybridization,
pubmed-meshheading:7600971-Mesoderm,
pubmed-meshheading:7600971-Mice,
pubmed-meshheading:7600971-Muscle, Skeletal,
pubmed-meshheading:7600971-Notochord,
pubmed-meshheading:7600971-Paired Box Transcription Factors,
pubmed-meshheading:7600971-Transcription Factors
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pubmed:year |
1994
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pubmed:articleTitle |
Regulation of Pax-3 expression in the dermomyotome and its role in muscle development.
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pubmed:affiliation |
Molecular Neurobiology Laboratory, Salk Institute, La Jolla, CA 92037, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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