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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1984-11-26
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pubmed:abstractText |
Cloned cDNA probes that recognize muscle-specific alpha-actin gene transcripts have been used to analyze two kinds of experimental embryos in Xenopus. In one, genetically marked nuclei of larval muscle cells were transplanted to wild-type enucleated eggs; alpha-actin genes became transcriptionally inactive in the resulting blastulae but were reactivated when these embryos reached the normal stage of alpha-actin expression (late gastrula). In the other, blastula embryos reared from fertilized eggs were separated into animal, vegetal, and equatorial regions, and their cells dissociated and reaggregated. alpha-Actin RNA was synthesized at the normal time in development, but only by equatorial cells. We conclude that alpha-actin gene transcription is normally regulated in nuclear-transplant embryos and is undisturbed by the absence of cell contacts during cleavage.
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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 |
Oct
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pubmed:issn |
0092-8674
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
38
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
691-700
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:6488316-Actins,
pubmed-meshheading:6488316-Animals,
pubmed-meshheading:6488316-Blastocyst,
pubmed-meshheading:6488316-Cell Aggregation,
pubmed-meshheading:6488316-Cell Communication,
pubmed-meshheading:6488316-Cell Division,
pubmed-meshheading:6488316-Cell Nucleus,
pubmed-meshheading:6488316-Embryo, Nonmammalian,
pubmed-meshheading:6488316-Female,
pubmed-meshheading:6488316-Fertilization,
pubmed-meshheading:6488316-Genes,
pubmed-meshheading:6488316-Muscles,
pubmed-meshheading:6488316-Nuclear Transfer Techniques,
pubmed-meshheading:6488316-Nucleic Acid Hybridization,
pubmed-meshheading:6488316-Transcription, Genetic,
pubmed-meshheading:6488316-Xenopus
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pubmed:year |
1984
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pubmed:articleTitle |
Transcription of muscle-specific actin genes in early Xenopus development: nuclear transplantation and cell dissociation.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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