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. 1984 Jan 25;12(2):915–932. doi: 10.1093/nar/12.2.915

Mutational dissection of the 21 bp repeat region of the SV40 early promoter reveals that it contains overlapping elements of the early-early and late-early promoters.

D Baty, H A Barrera-Saldana, R D Everett, M Vigneron, P Chambon
PMCID: PMC318545  PMID: 6320125

Abstract

Using quantitative S1 nuclease analysis and recombinants which contain the SV40 early promoter region linked to the rabbit beta-globin gene coding sequence, we have studied the effect of deletion, inversion and point mutations, located within the 21 bp repeat region, on initiation of transcription from the early-early and late-early startsites in the absence of T-antigen. Our data establish unequivocally that the six GC-rich repeats present in the 21 bp repeat region are essential elements of both the early-early and late-early promoters and that they are not redundant, since mutations, which affect only the GC-rich repeat most proximal to the TATA box, decrease drastically the activity of the early-early promoter, but increase that of the late-early promoter. On the other hand, the four GC-rich repeats most proximal to the 72 bp repeat are common elements of the two overlapping early-early and late-early promoters. Our results, which confirm that the early-early promoter is stronger than the late-early one, also support our previous suggestion that they are in competition for the transcriptional machinery. The general organization of the SV40 early promoter region is discussed.

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Selected References

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

  1. Banerji J., Rusconi S., Schaffner W. Expression of a beta-globin gene is enhanced by remote SV40 DNA sequences. Cell. 1981 Dec;27(2 Pt 1):299–308. doi: 10.1016/0092-8674(81)90413-x. [DOI] [PubMed] [Google Scholar]
  2. Benoist C., Chambon P. Deletions covering the putative promoter region of early mRNAs of simian virus 40 do not abolish T-antigen expression. Proc Natl Acad Sci U S A. 1980 Jul;77(7):3865–3869. doi: 10.1073/pnas.77.7.3865. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Benoist C., Chambon P. In vivo sequence requirements of the SV40 early promotor region. Nature. 1981 Mar 26;290(5804):304–310. doi: 10.1038/290304a0. [DOI] [PubMed] [Google Scholar]
  4. Byrne B. J., Davis M. S., Yamaguchi J., Bergsma D. J., Subramanian K. N. Definition of the simian virus 40 early promoter region and demonstration of a host range bias in the enhancement effect of the simian virus 40 72-base-pair repeat. Proc Natl Acad Sci U S A. 1983 Feb;80(3):721–725. doi: 10.1073/pnas.80.3.721. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Davison B. L., Egly J. M., Mulvihill E. R., Chambon P. Formation of stable preinitiation complexes between eukaryotic class B transcription factors and promoter sequences. Nature. 1983 Feb 24;301(5902):680–686. doi: 10.1038/301680a0. [DOI] [PubMed] [Google Scholar]
  6. Dynan W. S., Tjian R. Isolation of transcription factors that discriminate between different promoters recognized by RNA polymerase II. Cell. 1983 Mar;32(3):669–680. doi: 10.1016/0092-8674(83)90053-3. [DOI] [PubMed] [Google Scholar]
  7. Everett R. D., Baty D., Chambon P. The repeated GC-rich motifs upstream from the TATA box are important elements of the SV40 early promoter. Nucleic Acids Res. 1983 Apr 25;11(8):2447–2464. doi: 10.1093/nar/11.8.2447. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Fromm M., Berg P. Deletion mapping of DNA regions required for SV40 early region promoter function in vivo. J Mol Appl Genet. 1982;1(5):457–481. [PubMed] [Google Scholar]
  9. Fromm M., Berg P. Transcription in vivo from SV40 early promoter deletion mutants without repression by large T antigen. J Mol Appl Genet. 1983;2(1):127–135. [PubMed] [Google Scholar]
  10. Ghosh P. K., Lebowitz P., Frisque R. J., Gluzman Y. Identification of a promoter component involved in positioning the 5' termini of simian virus 40 early mRNAs. Proc Natl Acad Sci U S A. 1981 Jan;78(1):100–104. doi: 10.1073/pnas.78.1.100. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Ghosh P. K., Lebowitz P. Simian virus 40 early mRNA's contain multiple 5' termini upstream and downstream from a Hogness-Goldberg sequence; a shift in 5' termini during the lytic cycle is mediated by large T antigen. J Virol. 1981 Oct;40(1):224–240. doi: 10.1128/jvi.40.1.224-240.1981. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. 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]
  13. Hartzell S. W., Yamaguchi J., Subramanian K. N. SV40 deletion mutants lacking the 21-bp repeated sequences are viable, but have noncomplementable deficiencies. Nucleic Acids Res. 1983 Mar 11;11(5):1601–1616. doi: 10.1093/nar/11.5.1601. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Lebowitz P., Ghosh P. K. Initiation and regulation of simian virus 40 early transcription in vitro. J Virol. 1982 Feb;41(2):449–461. doi: 10.1128/jvi.41.2.449-461.1982. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. Mathis D. J., Chambon P. The SV40 early region TATA box is required for accurate in vitro initiation of transcription. Nature. 1981 Mar 26;290(5804):310–315. doi: 10.1038/290310a0. [DOI] [PubMed] [Google Scholar]
  16. Maxam A. M., Gilbert W. Sequencing end-labeled DNA with base-specific chemical cleavages. Methods Enzymol. 1980;65(1):499–560. doi: 10.1016/s0076-6879(80)65059-9. [DOI] [PubMed] [Google Scholar]
  17. 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]
  18. Reddy V. B., Ghosh P. K., Lebowitz P., Piatak M., Weissman S. M. Simian virus 40 early mRNA's. I. Genomic localization of 3' and 5' termini and two major splices in mRNA from transformed and lytically infected cells. J Virol. 1979 Apr;30(1):279–296. doi: 10.1128/jvi.30.1.279-296.1979. [DOI] [PMC free article] [PubMed] [Google Scholar]
  19. 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]
  20. Wasylyk B., Wasylyk C., Augereau P., Chambon P. The SV40 72 bp repeat preferentially potentiates transcription starting from proximal natural or substitute promoter elements. Cell. 1983 Feb;32(2):503–514. doi: 10.1016/0092-8674(83)90470-1. [DOI] [PubMed] [Google Scholar]
  21. Wasylyk B., Wasylyk C., Matthes H., Wintzerith M., Chambon P. Transcription from the SV40 early-early and late-early overlapping promoters in the absence of DNA replication. EMBO J. 1983;2(9):1605–1611. doi: 10.1002/j.1460-2075.1983.tb01631.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  22. de Villiers J., Schaffner W. A small segment of polyoma virus DNA enhances the expression of a cloned beta-globin gene over a distance of 1400 base pairs. Nucleic Acids Res. 1981 Dec 11;9(23):6251–6264. doi: 10.1093/nar/9.23.6251. [DOI] [PMC free article] [PubMed] [Google Scholar]

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