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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1992-6-17
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pubmed:abstractText |
An examination by autoradiography of African swine fever virus-infected alveolar macrophages pulse labeled with [3H]thymidine showed that, at early times of viral DNA replication, the grains were localized exclusively in the nucleus in 20% of the cells, while in 45% the label was found in the cytoplasm. In the remaining 35%, newly synthesized DNA was detected in both the nucleus and the cytoplasm. At later times, the percentage of cells with grains in the nucleus decreased considerably. Pulse-chase experiments indicated that the DNA synthesized in the nucleus is then transported to the cytoplasm. The presence of virus-specific DNA sequences in the nucleus was confirmed by in situ hybridization of infected macrophages. Similar hybridization experiments with African swine fever virus-infected VERO cells followed by confocal microscopy also indicated the existence of a nuclear stage in the localization of the viral DNA. These results suggest a mechanism for African swine fever virus DNA replication with an initial stage in the nucleus followed by a cytoplasmic phase. Specific nuclear forms associated with the hybridization signal have been observed in African swine fever virus-infected macrophages and VERO cells. The nuclear forms seen in macrophages are consistent with a mechanism for the egress of the viral DNA from the nucleus that involves initial budding at the nuclear membrane.
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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:month |
Jun
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pubmed:issn |
0042-6822
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
188
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
637-49
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:1585638-African Swine Fever Virus,
pubmed-meshheading:1585638-Animals,
pubmed-meshheading:1585638-Butyric Acid,
pubmed-meshheading:1585638-Butyric Acids,
pubmed-meshheading:1585638-Cell Nucleus,
pubmed-meshheading:1585638-Cells, Cultured,
pubmed-meshheading:1585638-Cytoplasm,
pubmed-meshheading:1585638-DNA, Viral,
pubmed-meshheading:1585638-DNA Replication,
pubmed-meshheading:1585638-Macrophages, Alveolar,
pubmed-meshheading:1585638-Nucleic Acid Hybridization,
pubmed-meshheading:1585638-Swine,
pubmed-meshheading:1585638-Vero Cells,
pubmed-meshheading:1585638-Virus Replication
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pubmed:year |
1992
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pubmed:articleTitle |
Role of the host cell nucleus in the replication of African swine fever virus DNA.
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pubmed:affiliation |
Centro de Biología Molecular, (CSIC-UAM), Facultad de Ciencias, Universidad Autónoma, Madrid, Spain.
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pubmed:publicationType |
Journal Article,
In Vitro,
Research Support, Non-U.S. Gov't
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