Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1984-11-26
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.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0092-8674
pubmed:author
pubmed:issnType
Print
pubmed:volume
38
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
691-700
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1984
pubmed:articleTitle
Transcription of muscle-specific actin genes in early Xenopus development: nuclear transplantation and cell dissociation.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.