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Position Effects on the Timing of Replication of Chromosomally Integrated Simian Virus 40 Molecules in Chinese Hamster Cells

Overview
Journal Mol Cell Biol
Specialty Cell Biology
Date 1990 Aug 1
PMID 2164638
Citations 5
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Abstract

Simian virus 40 (SV40) DNA molecules chromosomally integrated at different sites in three Chinese hamster lung fibroblast lines replicated during the middle portion of S phase but not precisely at the same time in all three cell lines. The time of replication was unrelated to the presence of T antigen or to its relative activity in promoting SV40 replication. SV40 sequences and chromosomal DNA sequences adjacent to the SV40 insert in one cell line expressing a temperature-sensitive T antigen showed a T-antigen-independent difference in replication timing from the homologous, allelic locus not linked to SV40. Our results indicate that the timing of replication of these integrated SV40 molecules is dependent upon the site of integration and is not determined by the level of T antigen replication-promoting activity.

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References
1.
DePamphilis M . Transcriptional elements as components of eukaryotic origins of DNA replication. Cell. 1988; 52(5):635-8. DOI: 10.1016/0092-8674(88)90398-4. View

2.
Hamlin J . Effect of damage to early, middle, and late-replicating DNA on progress through the S period in Chinese hamster ovary cells. Exp Cell Res. 1978; 112(2):225-32. DOI: 10.1016/0014-4827(78)90204-5. View

3.
Steglich C, Grens A, Scheffler I . Chinese hamster cells deficient in ornithine decarboxylase activity: reversion by gene amplification and by azacytidine treatment. Somat Cell Mol Genet. 1985; 11(1):11-23. DOI: 10.1007/BF01534730. View

4.
Hand R . Eucaryotic DNA: organization of the genome for replication. Cell. 1978; 15(2):317-25. DOI: 10.1016/0092-8674(78)90001-6. View

5.
Lebkowski J, Clancy S, Calos M . Simian virus 40 replication in adenovirus-transformed human cells antagonizes gene expression. Nature. 1985; 317(6033):169-71. DOI: 10.1038/317169a0. View