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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2-3
|
pubmed:dateCreated |
1997-3-13
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pubmed:abstractText |
The ultrastructural distribution of the proteins responsible for the silver staining of NORs was analyzed on serial thin sections of preembedded silver-stained rat kangaroo PtK1 metaphase chromosomes. Our results show that the Ag-NOR proteins present a crescent-shaped distribution at the secondary constriction of each chromatid. Moreover, in some cases the crescent-shaped structures of both chromatids are not symmetrically arranged but show different orientations. These observations, together with our own and previously reported light microscopy results obtained on silver-stained mammalian chromosomes, lead us to suggest a mechanism for the formation of apparent secondary constrictions at NORs.
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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:issn |
0301-0171
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
75
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
155-8
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:9040783-Animals,
pubmed-meshheading:9040783-Azure Stains,
pubmed-meshheading:9040783-Cell Line,
pubmed-meshheading:9040783-Chromatids,
pubmed-meshheading:9040783-Chromosome Banding,
pubmed-meshheading:9040783-Chromosomes,
pubmed-meshheading:9040783-Macropodidae,
pubmed-meshheading:9040783-Metaphase,
pubmed-meshheading:9040783-Microscopy, Electron,
pubmed-meshheading:9040783-Nuclear Proteins,
pubmed-meshheading:9040783-Nucleolus Organizer Region,
pubmed-meshheading:9040783-Silver Staining,
pubmed-meshheading:9040783-X Chromosome
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pubmed:year |
1996
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pubmed:articleTitle |
The Ag-NOR proteins present a crescent-shaped distribution at the secondary constrictions of metaphase PtK1 chromosomes.
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pubmed:affiliation |
Departamento de Biología, Universidad Autónoma de Madrid, Spain. jasuja@ccuam3.sdi.uam.cs
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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