Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1994-4-29
pubmed:abstractText
The distribution of U1, U2, U4, U5 and U6 small nuclear ribonucleoproteins (snRNPs) and interchromatin granules (IGs) was studied by electron-microscopic immunocytochemistry (EMI) in early 2-cell mouse embryos at the onset of embryonal transcription. The localization of these antigen structures was evaluated with respect to nucleoplasmic ribonucleoprotein (RPN) regions consisting of interchromatin and perichromatin areas. SnRNP structures of maternal origin (labelled with anti-Sm antibody) were widely distributed throughout the nucleoplasm. Specifically labelled IGs were detected by gold particle clusters distributed in the interchromatin regions of the nucleoplasm. Both immunodetections were negative in nucleolar precursor bodies (NPBs). In addition, the labelling of condensed chromatin blocks with anti-DNA antibody showed heterochromatin topology at this developmental stage. Small condensed chromatin blocks were distributed throughout the nucleus and also appeared in association with the NPB rim. The observed status quo represents a transient state of nuclear structure rearrangement.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0926-5287
pubmed:author
pubmed:issnType
Print
pubmed:volume
33
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
447-54
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
Immunoelectron microscopic localization of small nuclear ribonucleoproteins and interchromatin granules in the 2-cell mouse embryo.
pubmed:affiliation
Institute of Animal Physiology, Slovak Academy of Sciences, Kosice.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't