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. 1991 Jul;65(7):3504–3513. doi: 10.1128/jvi.65.7.3504-3513.1991

Role of alpha-transinducing factor (VP16) in the induction of alpha genes within the context of viral genomes.

D Spector 1, F Purves 1, B Roizman 1
PMCID: PMC241340  PMID: 1645782

Abstract

In herpes simplex virus 1, the five alpha genes are induced by alpha-transinducing factor (alpha TIF; VP16), a virion protein, acting in concert with Oct-1 and other cellular proteins on a cis-acting site in the promoter domain of alpha genes. Because alpha TIF is an essential virion protein, its function as an inducer can best be evaluated only by mutating the cis-acting site. Earlier we reported on a series of 17 mutations in and around the cis-acting site of a 275-bp alpha 27 promoter fused to a reporter gene and recombined into the viral genome. These recombinant viruses were tested in Vero cells in the presence of cycloheximide, and we demonstrated that mutations in the sequence required for Oct-1 binding abolished transactivation whereas mutations in the alpha TIF-dependent GARAT sequence decreased but did not abolish transactivation. We now report that (i) in limited-passage human embryonic lung cells, alpha gene expression from promoters mutated in the GARAT sequences is often higher and more variable than in Vero cells, (ii) in the absence of cycloheximide, the mutant viruses show less significant impairment of reporter gene expression, (iii) Oct-1 can bind either to the overlapping octamer element or to various TAATGARAT sequences with differing degrees of binding strength and these relative binding levels correlate well with levels of gene expression observed in infected cells, (iv) in the cis-acting site upstream of the alpha 4 gene, no degenerate overlapping Oct-1 sequence exists, and therefore in this instance Oct-1 must be binding directly to the TAATGARAT sequence, (v) extension of the alpha 27 promoter by an additional 1,334 bp results in much higher expression of the reporter gene as a result of additional upstream cis-acting sites, and (vi) obliteration of the most proximal Oct-1 binding element within the 275-bp promoter dramatically reduces gene expression even in the presence of the additional upstream cis-acting sites.

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Selected References

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  1. Ace C. I., McKee T. A., Ryan J. M., Cameron J. M., Preston C. M. Construction and characterization of a herpes simplex virus type 1 mutant unable to transinduce immediate-early gene expression. J Virol. 1989 May;63(5):2260–2269. doi: 10.1128/jvi.63.5.2260-2269.1989. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Batterson W., Roizman B. Characterization of the herpes simplex virion-associated factor responsible for the induction of alpha genes. J Virol. 1983 May;46(2):371–377. doi: 10.1128/jvi.46.2.371-377.1983. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Baumruker T., Sturm R., Herr W. OBP100 binds remarkably degenerate octamer motifs through specific interactions with flanking sequences. Genes Dev. 1988 Nov;2(11):1400–1413. doi: 10.1101/gad.2.11.1400. [DOI] [PubMed] [Google Scholar]
  4. Berger S. L., Cress W. D., Cress A., Triezenberg S. J., Guarente L. Selective inhibition of activated but not basal transcription by the acidic activation domain of VP16: evidence for transcriptional adaptors. Cell. 1990 Jun 29;61(7):1199–1208. doi: 10.1016/0092-8674(90)90684-7. [DOI] [PubMed] [Google Scholar]
  5. Blair E. D., Wagner E. K. A single regulatory region modulates both cis activation and trans activation of the herpes simplex virus VP5 promoter in transient-expression assays in vivo. J Virol. 1986 Nov;60(2):460–469. doi: 10.1128/jvi.60.2.460-469.1986. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Bradford M. M. A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding. Anal Biochem. 1976 May 7;72:248–254. doi: 10.1006/abio.1976.9999. [DOI] [PubMed] [Google Scholar]
  7. Bzik D. J., Preston C. M. Analysis of DNA sequences which regulate the transcription of herpes simplex virus immediate early gene 3: DNA sequences required for enhancer-like activity and response to trans-activation by a virion polypeptide. Nucleic Acids Res. 1986 Jan 24;14(2):929–943. doi: 10.1093/nar/14.2.929. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Böni J., Coen D. M. Examination of the roles of transcription factor Sp1-binding sites and an octamer motif in trans induction of the herpes simplex virus thymidine kinase gene. J Virol. 1989 Sep;63(9):4088–4092. doi: 10.1128/jvi.63.9.4088-4092.1989. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Campbell M. E., Palfreyman J. W., Preston C. M. Identification of herpes simplex virus DNA sequences which encode a trans-acting polypeptide responsible for stimulation of immediate early transcription. J Mol Biol. 1984 Nov 25;180(1):1–19. doi: 10.1016/0022-2836(84)90427-3. [DOI] [PubMed] [Google Scholar]
  10. Cress W. D., Triezenberg S. J. Critical structural elements of the VP16 transcriptional activation domain. Science. 1991 Jan 4;251(4989):87–90. doi: 10.1126/science.1846049. [DOI] [PubMed] [Google Scholar]
  11. Dalrymple M. A., McGeoch D. J., Davison A. J., Preston C. M. DNA sequence of the herpes simplex virus type 1 gene whose product is responsible for transcriptional activation of immediate early promoters. Nucleic Acids Res. 1985 Nov 11;13(21):7865–7879. doi: 10.1093/nar/13.21.7865. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Dignam J. D., Lebovitz R. M., Roeder R. G. Accurate transcription initiation by RNA polymerase II in a soluble extract from isolated mammalian nuclei. Nucleic Acids Res. 1983 Mar 11;11(5):1475–1489. doi: 10.1093/nar/11.5.1475. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Everett R. D., Orr A. The Vmw175 binding site in the IE-1 promoter has no apparent role in the expression of Vmw110 during herpes simplex virus type 1 infection. Virology. 1991 Feb;180(2):509–517. doi: 10.1016/0042-6822(91)90064-i. [DOI] [PubMed] [Google Scholar]
  14. Fletcher C., Heintz N., Roeder R. G. Purification and characterization of OTF-1, a transcription factor regulating cell cycle expression of a human histone H2b gene. Cell. 1987 Dec 4;51(5):773–781. doi: 10.1016/0092-8674(87)90100-0. [DOI] [PubMed] [Google Scholar]
  15. Gelman I. H., Silverstein S. Dissection of immediate-early gene promoters from herpes simplex virus: sequences that respond to the virus transcriptional activators. J Virol. 1987 Oct;61(10):3167–3172. doi: 10.1128/jvi.61.10.3167-3172.1987. [DOI] [PMC free article] [PubMed] [Google Scholar]
  16. Gelman I. H., Silverstein S. Herpes simplex virus immediate-early promoters are responsive to virus and cell trans-acting factors. J Virol. 1987 Jul;61(7):2286–2296. doi: 10.1128/jvi.61.7.2286-2296.1987. [DOI] [PMC free article] [PubMed] [Google Scholar]
  17. Gerster T., Roeder R. G. A herpesvirus trans-activating protein interacts with transcription factor OTF-1 and other cellular proteins. Proc Natl Acad Sci U S A. 1988 Sep;85(17):6347–6351. doi: 10.1073/pnas.85.17.6347. [DOI] [PMC free article] [PubMed] [Google Scholar]
  18. Greaves R. F., O'Hare P. Structural requirements in the herpes simplex virus type 1 transactivator Vmw65 for interaction with the cellular octamer-binding protein and target TAATGARAT sequences. J Virol. 1990 Jun;64(6):2716–2724. doi: 10.1128/jvi.64.6.2716-2724.1990. [DOI] [PMC free article] [PubMed] [Google Scholar]
  19. Greaves R., O'Hare P. Separation of requirements for protein-DNA complex assembly from those for functional activity in the herpes simplex virus regulatory protein Vmw65. J Virol. 1989 Apr;63(4):1641–1650. doi: 10.1128/jvi.63.4.1641-1650.1989. [DOI] [PMC free article] [PubMed] [Google Scholar]
  20. Haigh A., Greaves R., O'Hare P. Interference with the assembly of a virus-host transcription complex by peptide competition. Nature. 1990 Mar 15;344(6263):257–259. doi: 10.1038/344257a0. [DOI] [PubMed] [Google Scholar]
  21. Heine J. W., Honess R. W., Cassai E., Roizman B. Proteins specified by herpes simplex virus. XII. The virion polypeptides of type 1 strains. J Virol. 1974 Sep;14(3):640–651. doi: 10.1128/jvi.14.3.640-651.1974. [DOI] [PMC free article] [PubMed] [Google Scholar]
  22. Herr W., Sturm R. A., Clerc R. G., Corcoran L. M., Baltimore D., Sharp P. A., Ingraham H. A., Rosenfeld M. G., Finney M., Ruvkun G. The POU domain: a large conserved region in the mammalian pit-1, oct-1, oct-2, and Caenorhabditis elegans unc-86 gene products. Genes Dev. 1988 Dec;2(12A):1513–1516. doi: 10.1101/gad.2.12a.1513. [DOI] [PubMed] [Google Scholar]
  23. Honess R. W., Roizman B. Regulation of herpesvirus macromolecular synthesis. I. Cascade regulation of the synthesis of three groups of viral proteins. J Virol. 1974 Jul;14(1):8–19. doi: 10.1128/jvi.14.1.8-19.1974. [DOI] [PMC free article] [PubMed] [Google Scholar]
  24. Honess R. W., Roizman B. Regulation of herpesvirus macromolecular synthesis: sequential transition of polypeptide synthesis requires functional viral polypeptides. Proc Natl Acad Sci U S A. 1975 Apr;72(4):1276–1280. doi: 10.1073/pnas.72.4.1276. [DOI] [PMC free article] [PubMed] [Google Scholar]
  25. Ingraham H. A., Flynn S. E., Voss J. W., Albert V. R., Kapiloff M. S., Wilson L., Rosenfeld M. G. The POU-specific domain of Pit-1 is essential for sequence-specific, high affinity DNA binding and DNA-dependent Pit-1-Pit-1 interactions. Cell. 1990 Jun 15;61(6):1021–1033. doi: 10.1016/0092-8674(90)90067-o. [DOI] [PubMed] [Google Scholar]
  26. Kelleher R. J., 3rd, Flanagan P. M., Kornberg R. D. A novel mediator between activator proteins and the RNA polymerase II transcription apparatus. Cell. 1990 Jun 29;61(7):1209–1215. doi: 10.1016/0092-8674(90)90685-8. [DOI] [PubMed] [Google Scholar]
  27. Kissinger C. R., Liu B. S., Martin-Blanco E., Kornberg T. B., Pabo C. O. Crystal structure of an engrailed homeodomain-DNA complex at 2.8 A resolution: a framework for understanding homeodomain-DNA interactions. Cell. 1990 Nov 2;63(3):579–590. doi: 10.1016/0092-8674(90)90453-l. [DOI] [PubMed] [Google Scholar]
  28. Kristie T. M., LeBowitz J. H., Sharp P. A. The octamer-binding proteins form multi-protein--DNA complexes with the HSV alpha TIF regulatory protein. EMBO J. 1989 Dec 20;8(13):4229–4238. doi: 10.1002/j.1460-2075.1989.tb08608.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  29. Kristie T. M., Roizman B. Differentiation and DNA contact points of host proteins binding at the cis site for virion-mediated induction of alpha genes of herpes simplex virus 1. J Virol. 1988 Apr;62(4):1145–1157. doi: 10.1128/jvi.62.4.1145-1157.1988. [DOI] [PMC free article] [PubMed] [Google Scholar]
  30. Kristie T. M., Roizman B. Host cell proteins bind to the cis-acting site required for virion-mediated induction of herpes simplex virus 1 alpha genes. Proc Natl Acad Sci U S A. 1987 Jan;84(1):71–75. doi: 10.1073/pnas.84.1.71. [DOI] [PMC free article] [PubMed] [Google Scholar]
  31. Kristie T. M., Roizman B. Separation of sequences defining basal expression from those conferring alpha gene recognition within the regulatory domains of herpes simplex virus 1 alpha genes. Proc Natl Acad Sci U S A. 1984 Jul;81(13):4065–4069. doi: 10.1073/pnas.81.13.4065. [DOI] [PMC free article] [PubMed] [Google Scholar]
  32. Kristie T. M., Sharp P. A. Interactions of the Oct-1 POU subdomains with specific DNA sequences and with the HSV alpha-trans-activator protein. Genes Dev. 1990 Dec;4(12B):2383–2396. doi: 10.1101/gad.4.12b.2383. [DOI] [PubMed] [Google Scholar]
  33. LeBowitz J. H., Kobayashi T., Staudt L., Baltimore D., Sharp P. A. Octamer-binding proteins from B or HeLa cells stimulate transcription of the immunoglobulin heavy-chain promoter in vitro. Genes Dev. 1988 Oct;2(10):1227–1237. doi: 10.1101/gad.2.10.1227. [DOI] [PubMed] [Google Scholar]
  34. Lin Y. S., Green M. R. Mechanism of action of an acidic transcriptional activator in vitro. Cell. 1991 Mar 8;64(5):971–981. doi: 10.1016/0092-8674(91)90321-o. [DOI] [PubMed] [Google Scholar]
  35. Mackem S., Roizman B. Differentiation between alpha promoter and regulator regions of herpes simplex virus 1: the functional domains and sequence of a movable alpha regulator. Proc Natl Acad Sci U S A. 1982 Aug;79(16):4917–4921. doi: 10.1073/pnas.79.16.4917. [DOI] [PMC free article] [PubMed] [Google Scholar]
  36. Mackem S., Roizman B. Regulation of alpha genes of herpes simplex virus: the alpha 27 gene promoter-thymidine kinase chimera is positively regulated in converted L cells. J Virol. 1982 Sep;43(3):1015–1023. doi: 10.1128/jvi.43.3.1015-1023.1982. [DOI] [PMC free article] [PubMed] [Google Scholar]
  37. Mackem S., Roizman B. Structural features of the herpes simplex virus alpha gene 4, 0, and 27 promoter-regulatory sequences which confer alpha regulation on chimeric thymidine kinase genes. J Virol. 1982 Dec;44(3):939–949. doi: 10.1128/jvi.44.3.939-949.1982. [DOI] [PMC free article] [PubMed] [Google Scholar]
  38. McKnight J. L., Kristie T. M., Roizman B. Binding of the virion protein mediating alpha gene induction in herpes simplex virus 1-infected cells to its cis site requires cellular proteins. Proc Natl Acad Sci U S A. 1987 Oct;84(20):7061–7065. doi: 10.1073/pnas.84.20.7061. [DOI] [PMC free article] [PubMed] [Google Scholar]
  39. O'Hare P., Goding C. R., Haigh A. Direct combinatorial interaction between a herpes simplex virus regulatory protein and a cellular octamer-binding factor mediates specific induction of virus immediate-early gene expression. EMBO J. 1988 Dec 20;7(13):4231–4238. doi: 10.1002/j.1460-2075.1988.tb03320.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  40. O'Hare P., Goding C. R. Herpes simplex virus regulatory elements and the immunoglobulin octamer domain bind a common factor and are both targets for virion transactivation. Cell. 1988 Feb 12;52(3):435–445. doi: 10.1016/s0092-8674(88)80036-9. [DOI] [PubMed] [Google Scholar]
  41. Pellett P. E., McKnight J. L., Jenkins F. J., Roizman B. Nucleotide sequence and predicted amino acid sequence of a protein encoded in a small herpes simplex virus DNA fragment capable of trans-inducing alpha genes. Proc Natl Acad Sci U S A. 1985 Sep;82(17):5870–5874. doi: 10.1073/pnas.82.17.5870. [DOI] [PMC free article] [PubMed] [Google Scholar]
  42. Post L. E., Mackem S., Roizman B. Regulation of alpha genes of herpes simplex virus: expression of chimeric genes produced by fusion of thymidine kinase with alpha gene promoters. Cell. 1981 May;24(2):555–565. doi: 10.1016/0092-8674(81)90346-9. [DOI] [PubMed] [Google Scholar]
  43. Preston C. M., Frame M. C., Campbell M. E. A complex formed between cell components and an HSV structural polypeptide binds to a viral immediate early gene regulatory DNA sequence. Cell. 1988 Feb 12;52(3):425–434. doi: 10.1016/s0092-8674(88)80035-7. [DOI] [PubMed] [Google Scholar]
  44. Pruijn G. J., van Driel W., van der Vliet P. C. Nuclear factor III, a novel sequence-specific DNA-binding protein from HeLa cells stimulating adenovirus DNA replication. Nature. 1986 Aug 14;322(6080):656–659. doi: 10.1038/322656a0. [DOI] [PubMed] [Google Scholar]
  45. Resnick J., Boyd B. A., Haffey M. L. DNA binding by the herpes simplex virus type 1 ICP4 protein is necessary for efficient down regulation of the ICP0 promoter. J Virol. 1989 Jun;63(6):2497–2503. doi: 10.1128/jvi.63.6.2497-2503.1989. [DOI] [PMC free article] [PubMed] [Google Scholar]
  46. Sadowski I., Ma J., Triezenberg S., Ptashne M. GAL4-VP16 is an unusually potent transcriptional activator. Nature. 1988 Oct 6;335(6190):563–564. doi: 10.1038/335563a0. [DOI] [PubMed] [Google Scholar]
  47. Silver S., Roizman B. gamma 2-Thymidine kinase chimeras are identically transcribed but regulated a gamma 2 genes in herpes simplex virus genomes and as beta genes in cell genomes. Mol Cell Biol. 1985 Mar;5(3):518–528. doi: 10.1128/mcb.5.3.518. [DOI] [PMC free article] [PubMed] [Google Scholar]
  48. Spear P. G., Roizman B. Proteins specified by herpes simplex virus. V. Purification and structural proteins of the herpesvirion. J Virol. 1972 Jan;9(1):143–159. doi: 10.1128/jvi.9.1.143-159.1972. [DOI] [PMC free article] [PubMed] [Google Scholar]
  49. Spector D., Purves F., Roizman B. Mutational analysis of the promoter region of the alpha 27 gene of herpes simplex virus 1 within the context of the viral genome. Proc Natl Acad Sci U S A. 1990 Jul;87(14):5268–5272. doi: 10.1073/pnas.87.14.5268. [DOI] [PMC free article] [PubMed] [Google Scholar]
  50. Steiner I., Spivack J. G., Deshmane S. L., Ace C. I., Preston C. M., Fraser N. W. A herpes simplex virus type 1 mutant containing a nontransinducing Vmw65 protein establishes latent infection in vivo in the absence of viral replication and reactivates efficiently from explanted trigeminal ganglia. J Virol. 1990 Apr;64(4):1630–1638. doi: 10.1128/jvi.64.4.1630-1638.1990. [DOI] [PMC free article] [PubMed] [Google Scholar]
  51. Stern S., Tanaka M., Herr W. The Oct-1 homoeodomain directs formation of a multiprotein-DNA complex with the HSV transactivator VP16. Nature. 1989 Oct 19;341(6243):624–630. doi: 10.1038/341624a0. [DOI] [PubMed] [Google Scholar]
  52. Stringer K. F., Ingles C. J., Greenblatt J. Direct and selective binding of an acidic transcriptional activation domain to the TATA-box factor TFIID. Nature. 1990 Jun 28;345(6278):783–786. doi: 10.1038/345783a0. [DOI] [PubMed] [Google Scholar]
  53. Sturm R. A., Das G., Herr W. The ubiquitous octamer-binding protein Oct-1 contains a POU domain with a homeo box subdomain. Genes Dev. 1988 Dec;2(12A):1582–1599. doi: 10.1101/gad.2.12a.1582. [DOI] [PubMed] [Google Scholar]
  54. Sturm R. A., Herr W. The POU domain is a bipartite DNA-binding structure. Nature. 1988 Dec 8;336(6199):601–604. doi: 10.1038/336601a0. [DOI] [PubMed] [Google Scholar]
  55. Triezenberg S. J., Kingsbury R. C., McKnight S. L. Functional dissection of VP16, the trans-activator of herpes simplex virus immediate early gene expression. Genes Dev. 1988 Jun;2(6):718–729. doi: 10.1101/gad.2.6.718. [DOI] [PubMed] [Google Scholar]
  56. Triezenberg S. J., LaMarco K. L., McKnight S. L. Evidence of DNA: protein interactions that mediate HSV-1 immediate early gene activation by VP16. Genes Dev. 1988 Jun;2(6):730–742. doi: 10.1101/gad.2.6.730. [DOI] [PubMed] [Google Scholar]
  57. Verrijzer C. P., Kal A. J., van der Vliet P. C. The oct-1 homeo domain contacts only part of the octamer sequence and full oct-1 DNA-binding activity requires the POU-specific domain. Genes Dev. 1990 Nov;4(11):1964–1974. doi: 10.1101/gad.4.11.1964. [DOI] [PubMed] [Google Scholar]
  58. Xiao P., Capone J. P. A cellular factor binds to the herpes simplex virus type 1 transactivator Vmw65 and is required for Vmw65-dependent protein-DNA complex assembly with Oct-1. Mol Cell Biol. 1990 Sep;10(9):4974–4977. doi: 10.1128/mcb.10.9.4974. [DOI] [PMC free article] [PubMed] [Google Scholar]
  59. apRhys C. M., Ciufo D. M., O'Neill E. A., Kelly T. J., Hayward G. S. Overlapping octamer and TAATGARAT motifs in the VF65-response elements in herpes simplex virus immediate-early promoters represent independent binding sites for cellular nuclear factor III. J Virol. 1989 Jun;63(6):2798–2812. doi: 10.1128/jvi.63.6.2798-2812.1989. [DOI] [PMC free article] [PubMed] [Google Scholar]

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