Skip to main content
Journal of Virology logoLink to Journal of Virology
. 1979 Jun;30(3):929–932. doi: 10.1128/jvi.30.3.929-932.1979

Polyoma DNA synthesis in isolated nuclei: evidence for defective replication forks.

G Bjursell, V Munck, A J Therkelsen
PMCID: PMC353405  PMID: 225549

Abstract

Nuclei, isolated from polyoma virus-infected mouse 3T6 cells, were incubated under condtions suitable for polyoma DNA synthesis. By using electrom microscopy and standard regression statistics, it was shown that replication is mainly unidirectional in a large number of molecules, indicating the presence of inactive replication forks. The replication forks were inactivated randomly, and the defect seemed to be present from the beginning of the in vitro incubation.

Full text

PDF
929

Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Bjursell G. Effects of 2'-deoxy-2'-azidocytidine on polyoma virus DNA replication: evidence for rolling circle-type mechanism. J Virol. 1978 Apr;26(1):136–142. doi: 10.1128/jvi.26.1.136-142.1978. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Bjursell G., Magnusson G. Replication of polyoma DNA accumlation of early replicative intermediates during hydroxyurea inhibition. Virology. 1976 Oct 1;74(1):249–251. doi: 10.1016/0042-6822(76)90149-5. [DOI] [PubMed] [Google Scholar]
  3. Bjursell G., Skoog L., Thelander L., Söderman G. 2'-Deoxy-2'-azidocytidine inhibits the initiation of polyoma DNA synthesis. Proc Natl Acad Sci U S A. 1977 Dec;74(12):5310–5313. doi: 10.1073/pnas.74.12.5310. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Crawford L. V., Robbins A. K., Nicklin P. M. Location of the origin and terminus of replication in polyoma virus DNA. J Gen Virol. 1974 Oct;25(1):133–142. doi: 10.1099/0022-1317-25-1-133. [DOI] [PubMed] [Google Scholar]
  5. Crawford L. V., Syrett C., Wilde A. The replication of polyoma DNA. J Gen Virol. 1973 Dec;21(3):515–521. doi: 10.1099/0022-1317-21-3-515. [DOI] [PubMed] [Google Scholar]
  6. Fareed G. C., Garon G. F., Salzman N. P. Origin and direction of simian virus 40 deoxyribonucleic acid replication. J Virol. 1972 Sep;10(3):484–491. doi: 10.1128/jvi.10.3.484-491.1972. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Flory P. J., Jr Strandedness of newly synthesized short pieces of polyoma DNA from isolated nuclei. Nucleic Acids Res. 1977;4(5):1449–1464. doi: 10.1093/nar/4.5.1449. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Griffin B. E., Fried M. Amplification of a specific region of the polyoma virus genome. Nature. 1975 Jul 17;256(5514):175–179. doi: 10.1038/256175a0. [DOI] [PubMed] [Google Scholar]
  9. Hirt B. Selective extraction of polyoma DNA from infected mouse cell cultures. J Mol Biol. 1967 Jun 14;26(2):365–369. doi: 10.1016/0022-2836(67)90307-5. [DOI] [PubMed] [Google Scholar]
  10. Hunter T., Francke B., Bacheler L. In vitro polyoma DNA synthesis: asymmetry of short DNA chains. Cell. 1977 Dec;12(4):1021–1028. doi: 10.1016/0092-8674(77)90166-0. [DOI] [PubMed] [Google Scholar]
  11. Kornberg R. D. Structure of chromatin. Annu Rev Biochem. 1977;46:931–954. doi: 10.1146/annurev.bi.46.070177.004435. [DOI] [PubMed] [Google Scholar]
  12. Lai C. J., Nathans D. Non-specific termination of simian virus 40 DNA replication. J Mol Biol. 1975 Sep 5;97(1):113–118. doi: 10.1016/s0022-2836(75)80026-x. [DOI] [PubMed] [Google Scholar]
  13. Magnusson G. Hydroxyurea-induced accumulation of short fragments during polyoma DNA replication. II. Behavior during incubation of isolated nuclei. J Virol. 1973 Sep;12(3):609–615. doi: 10.1128/jvi.12.3.609-615.1973. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Magnusson G., Winnacker E. L., Eliasson R., Reichard P. Replication of polyoma DNA in isolated nuclei. II. Evidence for semi-conservative replication. J Mol Biol. 1972 Dec 30;72(3):539–552. doi: 10.1016/0022-2836(72)90173-8. [DOI] [PubMed] [Google Scholar]
  15. Perlman D., Huberman J. A. Asymmetric Okazaki piece synthesis during replication of simian virus 40 DNA in vivo. Cell. 1977 Dec;12(4):1029–1043. doi: 10.1016/0092-8674(77)90167-2. [DOI] [PubMed] [Google Scholar]
  16. Pigiet V., Eliasson R., Reichard P. Replication of polyoma DNA in isolated nuclei. 3. The nucleotide sequence at the RNA-DNA junction of nascent strands. J Mol Biol. 1974 Mar 25;84(1):197–216. doi: 10.1016/0022-2836(74)90222-8. [DOI] [PubMed] [Google Scholar]
  17. Reichard P., Eliasson R., Söderman G. Initiator RNA in discontinuous polyoma DNA synthesis. Proc Natl Acad Sci U S A. 1974 Dec;71(12):4901–4905. doi: 10.1073/pnas.71.12.4901. [DOI] [PMC free article] [PubMed] [Google Scholar]
  18. Reichard P. From deoxynucleotides to DNA synthesis. Fed Proc. 1978 Jan;37(1):9–14. [PubMed] [Google Scholar]
  19. Skoog L., Bjursell G., Thelander L., Hägerström T., Hobbs J., Eckstein F. 2'-Deoxy-2'-azidocytidine, a new inhibitor of DNA replication in mammalian cells. Eur J Biochem. 1977 Jan;72(2):371–378. doi: 10.1111/j.1432-1033.1977.tb11261.x. [DOI] [PubMed] [Google Scholar]
  20. Tegtmeyer P., Macasaet F. Simian virus 40 deoxyribonucleic acid synthesis: analysis by gel electrophoresis. J Virol. 1972 Oct;10(4):599–604. doi: 10.1128/jvi.10.4.599-604.1972. [DOI] [PMC free article] [PubMed] [Google Scholar]
  21. Winnacker E. L., Magnusson G., Reichard P. Replication of polyoma DNA in isolated nuclei. I. Characterization of the system from mouse fibroblast 3T6 cells. J Mol Biol. 1972 Dec 30;72(3):523–537. doi: 10.1016/0022-2836(72)90172-6. [DOI] [PubMed] [Google Scholar]

Articles from Journal of Virology are provided here courtesy of American Society for Microbiology (ASM)

RESOURCES