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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1995-5-24
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pubmed:abstractText |
The cytoplasmic retinoic acid (RA)-binding protein CRABP-II is expressed widely throughout early morphogenesis in mouse embryo, but its expression becomes more restricted as organogenesis progresses. CRABP-II expression remains strong in the developing limb bud suggesting a role for this protein in limb patterning. Here, we show that the CRABP-II promoter can direct expression of a lacZ transgene in a specific posterior domain during limb bud development. In order to investigate in more detail the role played by CRABP-II in RA signal transduction, we have also generated mice homozygous for a null mutation of this gene. CRABPII-/- mice are viable and fertile but show a developmental defect of the forelimb, specifically an additional, postaxial digit. This digit is generally, but not exclusively, limited to a single forepaw of an individual animal. The penetrance of the phenotype varies according to the genetic background, occurring most frequently on the inbred 129Sv background (50%), less frequently on the C57Bl/6 background (30%) and rarely on the outbred CD1 background (10%). This developmental abnormality implies a role for CRABP-II in normal patterning of the limb.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Mar
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pubmed:issn |
0950-1991
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
121
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pubmed:geneSymbol |
CRABP-II
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
671-9
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:7720575-Animals,
pubmed-meshheading:7720575-Forelimb,
pubmed-meshheading:7720575-Gene Expression,
pubmed-meshheading:7720575-Immunohistochemistry,
pubmed-meshheading:7720575-Mice,
pubmed-meshheading:7720575-Mice, Transgenic,
pubmed-meshheading:7720575-Morphogenesis,
pubmed-meshheading:7720575-Phenotype,
pubmed-meshheading:7720575-Polydactyly,
pubmed-meshheading:7720575-Promoter Regions, Genetic,
pubmed-meshheading:7720575-Receptors, Retinoic Acid,
pubmed-meshheading:7720575-Signal Transduction,
pubmed-meshheading:7720575-Tretinoin
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pubmed:year |
1995
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pubmed:articleTitle |
Postaxial polydactyly in forelimbs of CRABP-II mutant mice.
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pubmed:affiliation |
Division of Endocrinology, Hospital for Sick Children, Toronto, Canada.
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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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