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. 1986 Mar;57(3):776–785. doi: 10.1128/jvi.57.3.776-785.1986

DNA-binding region of the simian virus 40 tumor antigen.

D T Simmons
PMCID: PMC252805  PMID: 3005626

Abstract

The simian virus 40 (SV40) tumor (T) antigen was purified by immunoaffinity chromatography and cleaved with small amounts of trypsin, and the resulting fragments were subjected to SV40 DNA cellulose chromatography. A 44,000-molecular-weight fragment (44K fragment) from the left end of the molecule and a 30K fragment mapping from approximately Lys 131 to Lys 371 bound to the column and were eluted with 1 M NaCl. In a second series of experiments, T antigen was immunoprecipitated with hamster anti-T serum or various monoclonal antibodies and partially digested with trypsin. Fragments that were solubilized by this treatment were tested for DNA-binding activity by using an SV40 DNA fragment-binding assay. A 17K fragment which originated from the amino-terminal region of the polypeptide had no apparent binding activity in this assay. On the other hand, larger fragments (76K, 46K, and 30K) whose amino termini were mapped around Lys 131 did display DNA-binding activity. Finally, complexes consisting of SV40 DNA and T-antigen fragments were precipitated in the DNA-binding assay with monoclonal antibodies that recognize the central region of the protein; however, antibodies with specificities to the amino- or carboxy-terminal regions were inactive. These results strongly suggest that the DNA-binding region of T antigen lies approximately between Lys 131 and Lys 371, corresponding to 0.51 and 0.37 map units on the DNA.

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Selected References

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

  1. Bradley M. K., Griffin J. D., Livingston D. M. Relationship of oligomerization to enzymatic and DNA-binding properties of the SV40 large T antigen. Cell. 1982 Jan;28(1):125–134. doi: 10.1016/0092-8674(82)90382-8. [DOI] [PubMed] [Google Scholar]
  2. Brady J., Bolen J. B., Radonovich M., Salzman N., Khoury G. Stimulation of simian virus 40 late gene expression by simian virus 40 tumor antigen. Proc Natl Acad Sci U S A. 1984 Apr;81(7):2040–2044. doi: 10.1073/pnas.81.7.2040. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Brady J., Khoury G. trans Activation of the simian virus 40 late transcription unit by T-antigen. Mol Cell Biol. 1985 Jun;5(6):1391–1399. doi: 10.1128/mcb.5.6.1391. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Chamberlain J. P. Fluorographic detection of radioactivity in polyacrylamide gels with the water-soluble fluor, sodium salicylate. Anal Biochem. 1979 Sep 15;98(1):132–135. doi: 10.1016/0003-2697(79)90716-4. [DOI] [PubMed] [Google Scholar]
  5. Clark R., Peden K., Pipas J. M., Nathans D., Tjian R. Biochemical activities of T-antigen proteins encoded by simian virus 40 A gene deletion mutants. Mol Cell Biol. 1983 Feb;3(2):220–228. doi: 10.1128/mcb.3.2.220. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. DeLucia A. L., Lewton B. A., Tjian R., Tegtmeyer P. Topography of simian virus 40 A protein-DNA complexes: arrangement of pentanucleotide interaction sites at the origin of replication. J Virol. 1983 Apr;46(1):143–150. doi: 10.1128/jvi.46.1.143-150.1983. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Deppert W., Gurney E. G., Harrison R. O. Monoclonal antibodies against simian virus 40 tumor antigens: analysis of antigenic binding sites, using adenovirus type 2-simian virus 40 hybrid viruses. J Virol. 1981 Jan;37(1):478–482. doi: 10.1128/jvi.37.1.478-482.1981. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. DiMaio D., Nathans D. Cold-sensitive regulatory mutants of simian virus 40. J Mol Biol. 1980 Jun 15;140(1):129–142. doi: 10.1016/0022-2836(80)90359-9. [DOI] [PubMed] [Google Scholar]
  9. Fanning E., Westphal K. H., Brauer D., Cörlin D. Subclasses of simian virus 40 large T antigen: differential binding of two subclasses of T antigen from productively infected cells to viral and cellular DNA. EMBO J. 1982;1(9):1023–1028. doi: 10.1002/j.1460-2075.1982.tb01290.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Gidoni D., Scheller A., Barnet B., Hantzopoulos P., Oren M., Prives C. Different forms of simian virus 40 large tumor antigen varying in their affinities for DNA. J Virol. 1982 May;42(2):456–466. doi: 10.1128/jvi.42.2.456-466.1982. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Gluzman Y., Ahrens B. SV40 early mutants that are defective for viral DNA synthesis but competent for transformation of cultured rat and simian cells. Virology. 1982 Nov;123(1):78–92. doi: 10.1016/0042-6822(82)90296-3. [DOI] [PubMed] [Google Scholar]
  12. Gurney E. G., Harrison R. O., Fenno J. Monoclonal antibodies against simian virus 40 T antigens: evidence for distinct sublcasses of large T antigen and for similarities among nonviral T antigens. J Virol. 1980 Jun;34(3):752–763. doi: 10.1128/jvi.34.3.752-763.1980. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Hansen U., Tenen D. G., Livingston D. M., Sharp P. A. T antigen repression of SV40 early transcription from two promoters. Cell. 1981 Dec;27(3 Pt 2):603–613. doi: 10.1016/0092-8674(81)90402-5. [DOI] [PubMed] [Google Scholar]
  14. Harlow E., Crawford L. V., Pim D. C., Williamson N. M. Monoclonal antibodies specific for simian virus 40 tumor antigens. J Virol. 1981 Sep;39(3):861–869. doi: 10.1128/jvi.39.3.861-869.1981. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. 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]
  16. Jelinek W. R., Toomey T. P., Leinwand L., Duncan C. H., Biro P. A., Choudary P. V., Weissman S. M., Rubin C. M., Houck C. M., Deininger P. L. Ubiquitous, interspersed repeated sequences in mammalian genomes. Proc Natl Acad Sci U S A. 1980 Mar;77(3):1398–1402. doi: 10.1073/pnas.77.3.1398. [DOI] [PMC free article] [PubMed] [Google Scholar]
  17. Jones K. A., Tjian R. Essential contact residues within SV40 large T antigen binding sites I and II identified by alkylation-interference. Cell. 1984 Jan;36(1):155–162. doi: 10.1016/0092-8674(84)90084-9. [DOI] [PubMed] [Google Scholar]
  18. Keller J. M., Alwine J. C. Activation of the SV40 late promoter: direct effects of T antigen in the absence of viral DNA replication. Cell. 1984 Feb;36(2):381–389. doi: 10.1016/0092-8674(84)90231-9. [DOI] [PubMed] [Google Scholar]
  19. Levitsky K., Chandrasekaran K., Mora P. T., Simmons D. T. Immunoaffinity chromatography of a cellular tumor antigen from mouse neuroblastoma cells. Int J Cancer. 1983 Nov 15;32(5):597–602. doi: 10.1002/ijc.2910320513. [DOI] [PubMed] [Google Scholar]
  20. Linke H. K., Hunter T., Walter G. Structural relationship between the 100,000- and 17,000- molecular-weight T antigens of simian virus 40 (SV40) as deduced by comparison with the SV40-specific proteins coded by the nondefective adenovirus type 2-SV40 hybrid viruses. J Virol. 1979 Jan;29(1):390–394. doi: 10.1128/jvi.29.1.390-394.1979. [DOI] [PMC free article] [PubMed] [Google Scholar]
  21. Margolskee R. F., Nathans D. Simian virus 40 mutant T antigens with relaxed specificity for the nucleotide sequence at the viral DNA origin of replication. J Virol. 1984 Feb;49(2):386–393. doi: 10.1128/jvi.49.2.386-393.1984. [DOI] [PMC free article] [PubMed] [Google Scholar]
  22. McCutchan T. F., Singer M. F. DNA sequences similar to those around the simian virus 40 origin of replication are present in the monkey genome. Proc Natl Acad Sci U S A. 1981 Jan;78(1):95–99. doi: 10.1073/pnas.78.1.95. [DOI] [PMC free article] [PubMed] [Google Scholar]
  23. McKay R. D. Binding of a simian virus 40 T antigen-related protein to DNA. J Mol Biol. 1981 Jan 25;145(3):471–488. doi: 10.1016/0022-2836(81)90540-4. [DOI] [PubMed] [Google Scholar]
  24. Morrison B., Kress M., Khoury G., Jay G. Simian virus 40 tumor antigen: isolation of the origin-specific DNA-binding domain. J Virol. 1983 Jul;47(1):106–114. doi: 10.1128/jvi.47.1.106-114.1983. [DOI] [PMC free article] [PubMed] [Google Scholar]
  25. Myers R. M., Rio D. C., Robbins A. K., Tjian R. SV40 gene expression is modulated by the cooperative binding of T antigen to DNA. Cell. 1981 Aug;25(2):373–384. doi: 10.1016/0092-8674(81)90056-8. [DOI] [PubMed] [Google Scholar]
  26. Myers R. M., Tjian R. Construction and analysis of simian virus 40 origins defective in tumor antigen binding and DNA replication. Proc Natl Acad Sci U S A. 1980 Nov;77(11):6491–6495. doi: 10.1073/pnas.77.11.6491. [DOI] [PMC free article] [PubMed] [Google Scholar]
  27. Oren M., Winocour E., Prives C. Differential affinities of simian virus 40 large tumor antigen for DNA. Proc Natl Acad Sci U S A. 1980 Jan;77(1):220–224. doi: 10.1073/pnas.77.1.220. [DOI] [PMC free article] [PubMed] [Google Scholar]
  28. Paucha E., Harvey R., Smith A. E. Immunoprecipitation of some forms of simian virus 40 large-T antigen by antibodies to synthetic peptides. J Virol. 1984 Sep;51(3):670–681. doi: 10.1128/jvi.51.3.670-681.1984. [DOI] [PMC free article] [PubMed] [Google Scholar]
  29. Prives C., Barnet B., Scheller A., Khoury G., Jay G. Discrete regions of simian virus 40 large T antigen are required for nonspecific and viral origin-specific DNA binding. J Virol. 1982 Jul;43(1):73–82. doi: 10.1128/jvi.43.1.73-82.1982. [DOI] [PMC free article] [PubMed] [Google Scholar]
  30. Prives C., Covey L., Scheller A., Gluzman Y. DNA-binding properties of simian virus 40 T-antigen mutants defective in viral DNA replication. Mol Cell Biol. 1983 Nov;3(11):1958–1966. doi: 10.1128/mcb.3.11.1958. [DOI] [PMC free article] [PubMed] [Google Scholar]
  31. Rio D. C., Tjian R. SV40 T antigen binding site mutations that affect autoregulation. Cell. 1983 Apr;32(4):1227–1240. doi: 10.1016/0092-8674(83)90305-7. [DOI] [PubMed] [Google Scholar]
  32. Rio D., Robbins A., Myers R., Tjian R. Regulation of simian virus 40 early transcription in vitro by a purified tumor antigen. Proc Natl Acad Sci U S A. 1980 Oct;77(10):5706–5710. doi: 10.1073/pnas.77.10.5706. [DOI] [PMC free article] [PubMed] [Google Scholar]
  33. Scheidtmann K. H., Echle B., Walter G. Simian virus 40 large T antigen is phosphorylated at multiple sites clustered in two separate regions. J Virol. 1982 Oct;44(1):116–133. doi: 10.1128/jvi.44.1.116-133.1982. [DOI] [PMC free article] [PubMed] [Google Scholar]
  34. Scheidtmann K. H., Hardung M., Echle B., Walter G. DNA-binding activity of simian virus 40 large T antigen correlates with a distinct phosphorylation state. J Virol. 1984 Apr;50(1):1–12. doi: 10.1128/jvi.50.1.1-12.1984. [DOI] [PMC free article] [PubMed] [Google Scholar]
  35. Schwyzer M., Weil R., Frank G., Zuber H. Amino acid sequence analysis of fragments generated by partial proteolysis from large simian virus 40 tumor antigen. J Biol Chem. 1980 Jun 25;255(12):5627–5634. [PubMed] [Google Scholar]
  36. Shalloway D., Kleinberger T., Livingston D. M. Mapping of SV40 DNA replication origin region binding sites for the SV40 T antigen by protection against exonuclease III digestion. Cell. 1980 Jun;20(2):411–422. doi: 10.1016/0092-8674(80)90627-3. [DOI] [PubMed] [Google Scholar]
  37. Shortle D. R., Margolskee R. F., Nathans D. Mutational analysis of the simian virus 40 replicon: pseudorevertants of mutants with a defective replication origin. Proc Natl Acad Sci U S A. 1979 Dec;76(12):6128–6131. doi: 10.1073/pnas.76.12.6128. [DOI] [PMC free article] [PubMed] [Google Scholar]
  38. Shortle D., Nathans D. Mutants of simian virus 40 with base substitutions at the origin of DNA replication. Cold Spring Harb Symp Quant Biol. 1979;43(Pt 2):663–668. doi: 10.1101/sqb.1979.043.01.074. [DOI] [PubMed] [Google Scholar]
  39. Shortle D., Nathans D. Regulatory mutants of simian virus 40: constructed mutants with base substitutions at the origin of DNA replication. J Mol Biol. 1979 Jul 15;131(4):801–817. doi: 10.1016/0022-2836(79)90202-x. [DOI] [PubMed] [Google Scholar]
  40. Simmons D. T., Martin M. A., Mora P. T., Chang C. Relationship among Tau antigens isolated from various lines of simian virus 40-transformed cells. J Virol. 1980 Jun;34(3):650–657. doi: 10.1128/jvi.34.3.650-657.1980. [DOI] [PMC free article] [PubMed] [Google Scholar]
  41. Simmons D. T. Stepwise phosphorylation of the NH2-terminal region of the simian virus 40 large T antigen. J Biol Chem. 1984 Jul 10;259(13):8633–8640. [PubMed] [Google Scholar]
  42. Soprano K. J., Galanti N., Jonak G. J., McKercher S., Pipas J. M., Peden K. W., Baserga R. Mutational analysis of simian virus 40 T antigen: stimulation of cellular DNA synthesis and activation of rRNA genes by mutants with deletions in the T-antigen gene. Mol Cell Biol. 1983 Feb;3(2):214–219. doi: 10.1128/mcb.3.2.214. [DOI] [PMC free article] [PubMed] [Google Scholar]
  43. Stringer J. R. Mutant of simian virus 40 large T-antigen that is defective for viral DNA synthesis, but competent for transformation of cultured rat cells. J Virol. 1982 Jun;42(3):854–864. doi: 10.1128/jvi.42.3.854-864.1982. [DOI] [PMC free article] [PubMed] [Google Scholar]
  44. Tegtmeyer P., Lewton B. A., DeLucia A. L., Wilson V. G., Ryder K. Topography of simian virus 40 A protein-DNA complexes: arrangement of protein bound to the origin of replication. J Virol. 1983 Apr;46(1):151–161. doi: 10.1128/jvi.46.1.151-161.1983. [DOI] [PMC free article] [PubMed] [Google Scholar]
  45. Tjian R. Protein-DNA interactions at the origin of simian virus 40 DNA replication. Cold Spring Harb Symp Quant Biol. 1979;43(Pt 2):655–661. doi: 10.1101/sqb.1979.043.01.073. [DOI] [PubMed] [Google Scholar]
  46. Tjian R. The binding site on SV40 DNA for a T antigen-related protein. Cell. 1978 Jan;13(1):165–179. doi: 10.1016/0092-8674(78)90147-2. [DOI] [PubMed] [Google Scholar]

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