Skip to main content
PMC home page
Proceedings of the National Academy of Sciences of the United States of America logoLink to Proceedings of the National Academy of Sciences of the United States of America
. 1989 Jun;86(11):3939–3943. doi: 10.1073/pnas.86.11.3939

Simian virus 40 (SV40) large tumor antigen causes stepwise changes in SV40 origin structure during initiation of DNA replication.

J M Roberts 1
PMCID: PMC287363  PMID: 2542957

Abstract

We have studied structural changes in the simian virus 40 (SV40) replication origin induced by SV40 large tumor antigen (T antigen). T-antigen-induced changes in origin DNA conformation can be visualized as specific and discrete topologic changes in origin DNA minicircles. We discovered three origin-T-antigen complexes defined by changes in DNA linking number. These complexes probably reflected essential early steps in the initiation of DNA replication since their formation required DNA sequences that are necessary for DNA replication but do not affect T-antigen binding. There are striking parallels between the T antigen-origin interactions uncovered by this assay and the interactions between the DnaA, -B, and -C proteins and the Escherichia coli replication origin, suggesting a significant evolutionary conservation in the mechanisms that initiate DNA replication.

Full text

PDF
3939

Images in this article

3940Image
on p.3940
3941Image
on p.3941
3941Image
on p.3941
3941Image
on p.3941
3942Image
on p.3942
3942Image
on p.3942
3942Image
on p.3942

Selected References

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

  1. Amouyal M., Buc H. Topological unwinding of strong and weak promoters by RNA polymerase. A comparison between the lac wild-type and the UV5 sites of Escherichia coli. J Mol Biol. 1987 Jun 20;195(4):795–808. doi: 10.1016/0022-2836(87)90485-2. [DOI] [PubMed] [Google Scholar]
  2. Borowiec J. A., Hurwitz J. ATP stimulates the binding of simian virus 40 (SV40) large tumor antigen to the SV40 origin of replication. Proc Natl Acad Sci U S A. 1988 Jan;85(1):64–68. doi: 10.1073/pnas.85.1.64. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Borowiec J. A., Hurwitz J. Localized melting and structural changes in the SV40 origin of replication induced by T-antigen. EMBO J. 1988 Oct;7(10):3149–3158. doi: 10.1002/j.1460-2075.1988.tb03182.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Bramhill D., Kornberg A. Duplex opening by dnaA protein at novel sequences in initiation of replication at the origin of the E. coli chromosome. Cell. 1988 Mar 11;52(5):743–755. doi: 10.1016/0092-8674(88)90412-6. [DOI] [PubMed] [Google Scholar]
  5. Dean F. B., Borowiec J. A., Ishimi Y., Deb S., Tegtmeyer P., Hurwitz J. Simian virus 40 large tumor antigen requires three core replication origin domains for DNA unwinding and replication in vitro. Proc Natl Acad Sci U S A. 1987 Dec;84(23):8267–8271. doi: 10.1073/pnas.84.23.8267. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Dean F. B., Bullock P., Murakami Y., Wobbe C. R., Weissbach L., Hurwitz J. Simian virus 40 (SV40) DNA replication: SV40 large T antigen unwinds DNA containing the SV40 origin of replication. Proc Natl Acad Sci U S A. 1987 Jan;84(1):16–20. doi: 10.1073/pnas.84.1.16. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Dean F. B., Dodson M., Echols H., Hurwitz J. ATP-dependent formation of a specialized nucleoprotein structure by simian virus 40 (SV40) large tumor antigen at the SV40 replication origin. Proc Natl Acad Sci U S A. 1987 Dec;84(24):8981–8985. doi: 10.1073/pnas.84.24.8981. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Deb S. P., Tegtmeyer P. ATP enhances the binding of simian virus 40 large T antigen to the origin of replication. J Virol. 1987 Dec;61(12):3649–3654. doi: 10.1128/jvi.61.12.3649-3654.1987. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Dodson M., Dean F. B., Bullock P., Echols H., Hurwitz J. Unwinding of duplex DNA from the SV40 origin of replication by T antigen. Science. 1987 Nov 13;238(4829):964–967. doi: 10.1126/science.2823389. [DOI] [PubMed] [Google Scholar]
  10. Dodson M., Roberts J., McMacken R., Echols H. Specialized nucleoprotein structures at the origin of replication of bacteriophage lambda: complexes with lambda O protein and with lambda O, lambda P, and Escherichia coli DnaB proteins. Proc Natl Acad Sci U S A. 1985 Jul;82(14):4678–4682. doi: 10.1073/pnas.82.14.4678. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Dunn T. M., Hahn S., Ogden S., Schleif R. F. An operator at -280 base pairs that is required for repression of araBAD operon promoter: addition of DNA helical turns between the operator and promoter cyclically hinders repression. Proc Natl Acad Sci U S A. 1984 Aug;81(16):5017–5020. doi: 10.1073/pnas.81.16.5017. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Echols H. Multiple DNA-protein interactions governing high-precision DNA transactions. Science. 1986 Sep 5;233(4768):1050–1056. doi: 10.1126/science.2943018. [DOI] [PubMed] [Google Scholar]
  13. Fuller R. S., Funnell B. E., Kornberg A. The dnaA protein complex with the E. coli chromosomal replication origin (oriC) and other DNA sites. Cell. 1984 Oct;38(3):889–900. doi: 10.1016/0092-8674(84)90284-8. [DOI] [PubMed] [Google Scholar]
  14. Funnell B. E., Baker T. A., Kornberg A. In vitro assembly of a prepriming complex at the origin of the Escherichia coli chromosome. J Biol Chem. 1987 Jul 25;262(21):10327–10334. [PubMed] [Google Scholar]
  15. Gluzman Y., Sambrook J. F., Frisque R. J. Expression of early genes of origin-defective mutants of simian virus 40. Proc Natl Acad Sci U S A. 1980 Jul;77(7):3898–3902. doi: 10.1073/pnas.77.7.3898. [DOI] [PMC free article] [PubMed] [Google Scholar]
  16. Goetz G. S., Dean F. B., Hurwitz J., Matson S. W. The unwinding of duplex regions in DNA by the simian virus 40 large tumor antigen-associated DNA helicase activity. J Biol Chem. 1988 Jan 5;263(1):383–392. [PubMed] [Google Scholar]
  17. Hahn S., Hendrickson W., Schleif R. Transcription of Escherichia coli ara in vitro. The cyclic AMP receptor protein requirement for PBAD induction that depends on the presence and orientation of the araO2 site. J Mol Biol. 1986 Apr 5;188(3):355–367. doi: 10.1016/0022-2836(86)90160-9. [DOI] [PubMed] [Google Scholar]
  18. Hochschild A., Ptashne M. Cooperative binding of lambda repressors to sites separated by integral turns of the DNA helix. Cell. 1986 Mar 14;44(5):681–687. doi: 10.1016/0092-8674(86)90833-0. [DOI] [PubMed] [Google Scholar]
  19. Horowitz D. S., Wang J. C. Torsional rigidity of DNA and length dependence of the free energy of DNA supercoiling. J Mol Biol. 1984 Feb 15;173(1):75–91. doi: 10.1016/0022-2836(84)90404-2. [DOI] [PubMed] [Google Scholar]
  20. Irani M. H., Orosz L., Adhya S. A control element within a structural gene: the gal operon of Escherichia coli. Cell. 1983 Mar;32(3):783–788. doi: 10.1016/0092-8674(83)90064-8. [DOI] [PubMed] [Google Scholar]
  21. Kornberg A. DNA replication. J Biol Chem. 1988 Jan 5;263(1):1–4. [PubMed] [Google Scholar]
  22. Li J. J., Kelly T. J. Simian virus 40 DNA replication in vitro. Proc Natl Acad Sci U S A. 1984 Nov;81(22):6973–6977. doi: 10.1073/pnas.81.22.6973. [DOI] [PMC free article] [PubMed] [Google Scholar]
  23. Li J. J., Peden K. W., Dixon R. A., Kelly T. Functional organization of the simian virus 40 origin of DNA replication. Mol Cell Biol. 1986 Apr;6(4):1117–1128. doi: 10.1128/mcb.6.4.1117. [DOI] [PMC free article] [PubMed] [Google Scholar]
  24. Roberts J. M., D'Urso G. An origin unwinding activity regulates initiation of DNA replication during mammalian cell cycle. Science. 1988 Sep 16;241(4872):1486–1489. doi: 10.1126/science.2843984. [DOI] [PubMed] [Google Scholar]
  25. Saucier J. M., Wang J. C. Angular alteration of the DNA helix by E. coli RNA polymerase. Nat New Biol. 1972 Oct 11;239(93):167–170. doi: 10.1038/newbio239167a0. [DOI] [PubMed] [Google Scholar]
  26. Sekimizu K., Bramhill D., Kornberg A. ATP activates dnaA protein in initiating replication of plasmids bearing the origin of the E. coli chromosome. Cell. 1987 Jul 17;50(2):259–265. doi: 10.1016/0092-8674(87)90221-2. [DOI] [PubMed] [Google Scholar]
  27. Shore D., Baldwin R. L. Energetics of DNA twisting. II. Topoisomer analysis. J Mol Biol. 1983 Nov 15;170(4):983–1007. doi: 10.1016/s0022-2836(83)80199-5. [DOI] [PubMed] [Google Scholar]
  28. Stahl H., Dröge P., Knippers R. DNA helicase activity of SV40 large tumor antigen. EMBO J. 1986 Aug;5(8):1939–1944. doi: 10.1002/j.1460-2075.1986.tb04447.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  29. Stillman B. W., Gluzman Y. Replication and supercoiling of simian virus 40 DNA in cell extracts from human cells. Mol Cell Biol. 1985 Aug;5(8):2051–2060. doi: 10.1128/mcb.5.8.2051. [DOI] [PMC free article] [PubMed] [Google Scholar]
  30. Takahashi K., Vigneron M., Matthes H., Wildeman A., Zenke M., Chambon P. Requirement of stereospecific alignments for initiation from the simian virus 40 early promoter. Nature. 1986 Jan 9;319(6049):121–126. doi: 10.1038/319121a0. [DOI] [PubMed] [Google Scholar]
  31. Wang J. C., Giaever G. N. Action at a distance along a DNA. Science. 1988 Apr 15;240(4850):300–304. doi: 10.1126/science.3281259. [DOI] [PubMed] [Google Scholar]
  32. Wang J. C. Interaction between DNA and an Escherichia coli protein omega. J Mol Biol. 1971 Feb 14;55(3):523–533. doi: 10.1016/0022-2836(71)90334-2. [DOI] [PubMed] [Google Scholar]
  33. Wang J. C., Jacobsen J. H., Saucier J. M. Physiochemical studies on interactions between DNA and RNA polymerase. Unwinding of the DNA helix by Escherichia coli RNA polymerase. Nucleic Acids Res. 1977;4(5):1225–1241. doi: 10.1093/nar/4.5.1225. [DOI] [PMC free article] [PubMed] [Google Scholar]
  34. Wasserman S. A., Cozzarelli N. R. Biochemical topology: applications to DNA recombination and replication. Science. 1986 May 23;232(4753):951–960. doi: 10.1126/science.3010458. [DOI] [PubMed] [Google Scholar]
  35. Wold M. S., Li J. J., Kelly T. J. Initiation of simian virus 40 DNA replication in vitro: large-tumor-antigen- and origin-dependent unwinding of the template. Proc Natl Acad Sci U S A. 1987 Jun;84(11):3643–3647. doi: 10.1073/pnas.84.11.3643. [DOI] [PMC free article] [PubMed] [Google Scholar]

Articles from Proceedings of the National Academy of Sciences of the United States of America are provided here courtesy of National Academy of Sciences

RESOURCES