Skip to main content
PMC home page
Journal of Virology logoLink to Journal of Virology
. 1989 Nov;63(11):4579–4589. doi: 10.1128/jvi.63.11.4579-4589.1989

Herpes simplex virus type 1 ICP0 plays a critical role in the de novo synthesis of infectious virus following transfection of viral DNA.

W Z Cai 1, P A Schaffer 1
PMCID: PMC251091  PMID: 2552142

Abstract

As a first step in identifying the functions and intramolecular functional domains of herpes simplex virus type 1 infected cell protein 0 (ICP0) in productive infection and latency, a series of mutant plasmids specifying varying amounts of the ICP0 primary amino acid sequence were constructed. In transient expression assays with mutant and wild-type plasmids, the N-terminal half of the ICP0 molecule was found to be sufficient to transactivate a variety of viral promoters. Although promoters representing the immediate-early, early, and late kinetic classes were transactivated by wild-type ICP0, individual promoters responded to mutant forms of ICP0 in a manner consistent with the possibility that ICP0 transactivates different promoters by different mechanisms. Unlike infection with virus particles, which contain the 65-kilodalton transcriptional transactiovator, the initiation of viral replication after transfection of cells with purified viral DNA requires de novo protein synthesis. In order to assess the role of ICP0 in the de novo synthesis of infectious virus, Vero cells were transfected with purified DNA of wild-type virus or an ICP0 null mutant and the production of infectious virus was monitored. In cells transfected with mutant DNA, virus production was delayed by 2 days and the level of virus was reduced by several orders of magnitude relative to Vero cells transfected with wild-type viral DNA, suggesting an important role for ICP0 in the de novo synthesis of infectious particles. In cotransfection experiments with infectious DNA of the ICP0 null mutant and a plasmid specifying wild-type ICP0 titers of infectious virus were significantly enhanced relative to transfection with mutant DNA alone, confirming the role of ICP0 in de novo synthesis. These findings are consistent with the proposed role of ICP0 in reactivation of herpes simplex virus from latency (D. A. Leib, D. M. Coen, C. L. Bogard, K. A. Hicks, D. R. Yager, D. M. Knipe, K. L. Tyler, and P. A. Schaffer, J. Virol. 63:759-768, 1989), a process also thought to require de novo protein synthesis. The complementing activities of ICP0 mutant plasmids for ICP0 null mutant DNA in cotransfection assays correlated well with their transactivating activities for viral promoters in transient assays, indicating that the transactivating function of ICP0 is a critical factor in the de novo synthesis of infectious particles.(ABSTRACT TRUNCATED AT 400 WORDS)

Full text

PDF
4579

Images in this article

4582Image
on p.4582
4583Image
on p.4583
4584Image
on p.4584
4585Image
on p.4585
4586Image
on p.4586

Selected References

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

  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. Ackermann M., Braun D. K., Pereira L., Roizman B. Characterization of herpes simplex virus 1 alpha proteins 0, 4, and 27 with monoclonal antibodies. J Virol. 1984 Oct;52(1):108–118. doi: 10.1128/jvi.52.1.108-118.1984. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Anderson K. P., Costa R. H., Holland L. E., Wagner E. K. Characterization of herpes simplex virus type 1 RNA present in the absence of de novo protein synthesis. J Virol. 1980 Apr;34(1):9–27. doi: 10.1128/jvi.34.1.9-27.1980. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Birnboim H. C., Doly J. A rapid alkaline extraction procedure for screening recombinant plasmid DNA. Nucleic Acids Res. 1979 Nov 24;7(6):1513–1523. doi: 10.1093/nar/7.6.1513. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Cai W. Z., Person S., DebRoy C., Gu B. H. Functional regions and structural features of the gB glycoprotein of herpes simplex virus type 1. An analysis of linker insertion mutants. J Mol Biol. 1988 Jun 5;201(3):575–588. doi: 10.1016/0022-2836(88)90639-0. [DOI] [PubMed] [Google Scholar]
  6. Cai W. Z., Person S., Warner S. C., Zhou J. H., DeLuca N. A. Linker-insertion nonsense and restriction-site deletion mutations of the gB glycoprotein gene of herpes simplex virus type 1. J Virol. 1987 Mar;61(3):714–721. doi: 10.1128/jvi.61.3.714-721.1987. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. 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]
  8. Casadaban M. J., Martinez-Arias A., Shapira S. K., Chou J. Beta-galactosidase gene fusions for analyzing gene expression in escherichia coli and yeast. Methods Enzymol. 1983;100:293–308. doi: 10.1016/0076-6879(83)00063-4. [DOI] [PubMed] [Google Scholar]
  9. Clements J. B., Watson R. J., Wilkie N. M. Temporal regulation of herpes simplex virus type 1 transcription: location of transcripts on the viral genome. Cell. 1977 Sep;12(1):275–285. doi: 10.1016/0092-8674(77)90205-7. [DOI] [PubMed] [Google Scholar]
  10. Cohen S. N., Chang A. C., Hsu L. Nonchromosomal antibiotic resistance in bacteria: genetic transformation of Escherichia coli by R-factor DNA. Proc Natl Acad Sci U S A. 1972 Aug;69(8):2110–2114. doi: 10.1073/pnas.69.8.2110. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. DeLuca N. A., Courtney M. A., Schaffer P. A. Temperature-sensitive mutants in herpes simplex virus type 1 ICP4 permissive for early gene expression. J Virol. 1984 Dec;52(3):767–776. doi: 10.1128/jvi.52.3.767-776.1984. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. DeLuca N. A., McCarthy A. M., Schaffer P. A. Isolation and characterization of deletion mutants of herpes simplex virus type 1 in the gene encoding immediate-early regulatory protein ICP4. J Virol. 1985 Nov;56(2):558–570. doi: 10.1128/jvi.56.2.558-570.1985. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. DeLuca N. A., Schaffer P. A. Activation of immediate-early, early, and late promoters by temperature-sensitive and wild-type forms of herpes simplex virus type 1 protein ICP4. Mol Cell Biol. 1985 Aug;5(8):1997–2008. doi: 10.1128/mcb.5.8.1997. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. DeLuca N. A., Schaffer P. A. Physical and functional domains of the herpes simplex virus transcriptional regulatory protein ICP4. J Virol. 1988 Mar;62(3):732–743. doi: 10.1128/jvi.62.3.732-743.1988. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. Dixon R. A., Schaffer P. A. Fine-structure mapping and functional analysis of temperature-sensitive mutants in the gene encoding the herpes simplex virus type 1 immediate early protein VP175. J Virol. 1980 Oct;36(1):189–203. doi: 10.1128/jvi.36.1.189-203.1980. [DOI] [PMC free article] [PubMed] [Google Scholar]
  16. Everett R. D. A detailed mutational analysis of Vmw110, a trans-acting transcriptional activator encoded by herpes simplex virus type 1. EMBO J. 1987 Jul;6(7):2069–2076. doi: 10.1002/j.1460-2075.1987.tb02472.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  17. Everett R. D. Analysis of the functional domains of herpes simplex virus type 1 immediate-early polypeptide Vmw110. J Mol Biol. 1988 Jul 5;202(1):87–96. doi: 10.1016/0022-2836(88)90521-9. [DOI] [PubMed] [Google Scholar]
  18. Everett R. D. The products of herpes simplex virus type 1 (HSV-1) immediate early genes 1, 2 and 3 can activate HSV-1 gene expression in trans. J Gen Virol. 1986 Nov;67(Pt 11):2507–2513. doi: 10.1099/0022-1317-67-11-2507. [DOI] [PubMed] [Google Scholar]
  19. Everett R. D. Trans activation of transcription by herpes virus products: requirement for two HSV-1 immediate-early polypeptides for maximum activity. EMBO J. 1984 Dec 20;3(13):3135–3141. doi: 10.1002/j.1460-2075.1984.tb02270.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  20. Faber S. W., Wilcox K. W. Association of the herpes simplex virus regulatory protein ICP4 with specific nucleotide sequences in DNA. Nucleic Acids Res. 1986 Aug 11;14(15):6067–6083. doi: 10.1093/nar/14.15.6067. [DOI] [PMC free article] [PubMed] [Google Scholar]
  21. Gelman I. H., Silverstein S. Co-ordinate regulation of herpes simplex virus gene expression is mediated by the functional interaction of two immediate early gene products. J Mol Biol. 1986 Oct 5;191(3):395–409. doi: 10.1016/0022-2836(86)90135-x. [DOI] [PubMed] [Google Scholar]
  22. Gelman I. H., Silverstein S. Identification of immediate early genes from herpes simplex virus that transactivate the virus thymidine kinase gene. Proc Natl Acad Sci U S A. 1985 Aug;82(16):5265–5269. doi: 10.1073/pnas.82.16.5265. [DOI] [PMC free article] [PubMed] [Google Scholar]
  23. Graham F. L., van der Eb A. J. A new technique for the assay of infectivity of human adenovirus 5 DNA. Virology. 1973 Apr;52(2):456–467. doi: 10.1016/0042-6822(73)90341-3. [DOI] [PubMed] [Google Scholar]
  24. Hay R. T., Hay J. Properties of herpesvirus-induced "immediate early" polypeptides. Virology. 1980 Jul 15;104(1):230–234. doi: 10.1016/0042-6822(80)90381-5. [DOI] [PubMed] [Google Scholar]
  25. Holmes D. S., Quigley M. A rapid boiling method for the preparation of bacterial plasmids. Anal Biochem. 1981 Jun;114(1):193–197. doi: 10.1016/0003-2697(81)90473-5. [DOI] [PubMed] [Google Scholar]
  26. 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]
  27. 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]
  28. Jones P. C., Roizman B. Regulation of herpesvirus macromolecular synthesis. VIII. The transcription program consists of three phases during which both extent of transcription and accumulation of RNA in the cytoplasm are regulated. J Virol. 1979 Aug;31(2):299–314. doi: 10.1128/jvi.31.2.299-314.1979. [DOI] [PMC free article] [PubMed] [Google Scholar]
  29. Kristie T. M., Roizman B. Alpha 4, the major regulatory protein of herpes simplex virus type 1, is stably and specifically associated with promoter-regulatory domains of alpha genes and of selected other viral genes. Proc Natl Acad Sci U S A. 1986 May;83(10):3218–3222. doi: 10.1073/pnas.83.10.3218. [DOI] [PMC free article] [PubMed] [Google Scholar]
  30. Kristie T. M., Roizman B. DNA-binding site of major regulatory protein alpha 4 specifically associated with promoter-regulatory domains of alpha genes of herpes simplex virus type 1. Proc Natl Acad Sci U S A. 1986 Jul;83(13):4700–4704. doi: 10.1073/pnas.83.13.4700. [DOI] [PMC free article] [PubMed] [Google Scholar]
  31. Laemmli U. K. Cleavage of structural proteins during the assembly of the head of bacteriophage T4. Nature. 1970 Aug 15;227(5259):680–685. doi: 10.1038/227680a0. [DOI] [PubMed] [Google Scholar]
  32. Leib D. A., Coen D. M., Bogard C. L., Hicks K. A., Yager D. R., Knipe D. M., Tyler K. L., Schaffer P. A. Immediate-early regulatory gene mutants define different stages in the establishment and reactivation of herpes simplex virus latency. J Virol. 1989 Feb;63(2):759–768. doi: 10.1128/jvi.63.2.759-768.1989. [DOI] [PMC free article] [PubMed] [Google Scholar]
  33. 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]
  34. Mavromara-Nazos P., Silver S., Hubenthal-Voss J., McKnight J. L., Roizman B. Regulation of herpes simplex virus 1 genes: alpha gene sequence requirements for transient induction of indicator genes regulated by beta or late (gamma 2) promoters. Virology. 1986 Mar;149(2):152–164. doi: 10.1016/0042-6822(86)90117-0. [DOI] [PubMed] [Google Scholar]
  35. McCarthy A. M., McMahan L., Schaffer P. A. Herpes simplex virus type 1 ICP27 deletion mutants exhibit altered patterns of transcription and are DNA deficient. J Virol. 1989 Jan;63(1):18–27. doi: 10.1128/jvi.63.1.18-27.1989. [DOI] [PMC free article] [PubMed] [Google Scholar]
  36. McGeoch D. J., Dalrymple M. A., Davison A. J., Dolan A., Frame M. C., McNab D., Perry L. J., Scott J. E., Taylor P. The complete DNA sequence of the long unique region in the genome of herpes simplex virus type 1. J Gen Virol. 1988 Jul;69(Pt 7):1531–1574. doi: 10.1099/0022-1317-69-7-1531. [DOI] [PubMed] [Google Scholar]
  37. McGeoch D. J., Dolan A., Donald S., Brauer D. H. Complete DNA sequence of the short repeat region in the genome of herpes simplex virus type 1. Nucleic Acids Res. 1986 Feb 25;14(4):1727–1745. doi: 10.1093/nar/14.4.1727. [DOI] [PMC free article] [PubMed] [Google Scholar]
  38. McGeoch D. J., Dolan A., Donald S., Rixon F. J. Sequence determination and genetic content of the short unique region in the genome of herpes simplex virus type 1. J Mol Biol. 1985 Jan 5;181(1):1–13. doi: 10.1016/0022-2836(85)90320-1. [DOI] [PubMed] [Google Scholar]
  39. Muller M. T. Binding of the herpes simplex virus immediate-early gene product ICP4 to its own transcription start site. J Virol. 1987 Mar;61(3):858–865. doi: 10.1128/jvi.61.3.858-865.1987. [DOI] [PMC free article] [PubMed] [Google Scholar]
  40. O'Hare P., Hayward G. S. Evidence for a direct role for both the 175,000- and 110,000-molecular-weight immediate-early proteins of herpes simplex virus in the transactivation of delayed-early promoters. J Virol. 1985 Mar;53(3):751–760. doi: 10.1128/jvi.53.3.751-760.1985. [DOI] [PMC free article] [PubMed] [Google Scholar]
  41. O'Hare P., Hayward G. S. Three trans-acting regulatory proteins of herpes simplex virus modulate immediate-early gene expression in a pathway involving positive and negative feedback regulation. J Virol. 1985 Dec;56(3):723–733. doi: 10.1128/jvi.56.3.723-733.1985. [DOI] [PMC free article] [PubMed] [Google Scholar]
  42. Pereira L., Wolff M. H., Fenwick M., Roizman B. Regulation of herpesvirus macromolecular synthesis. V. Properties of alpha polypeptides made in HSV-1 and HSV-2 infected cells. Virology. 1977 Apr;77(2):733–749. doi: 10.1016/0042-6822(77)90495-0. [DOI] [PubMed] [Google Scholar]
  43. Perry L. J., McGeoch D. J. The DNA sequences of the long repeat region and adjoining parts of the long unique region in the genome of herpes simplex virus type 1. J Gen Virol. 1988 Nov;69(Pt 11):2831–2846. doi: 10.1099/0022-1317-69-11-2831. [DOI] [PubMed] [Google Scholar]
  44. Perry L. J., Rixon F. J., Everett R. D., Frame M. C., McGeoch D. J. Characterization of the IE110 gene of herpes simplex virus type 1. J Gen Virol. 1986 Nov;67(Pt 11):2365–2380. doi: 10.1099/0022-1317-67-11-2365. [DOI] [PubMed] [Google Scholar]
  45. Quinlan M. P., Knipe D. M. Stimulation of expression of a herpes simplex virus DNA-binding protein by two viral functions. Mol Cell Biol. 1985 May;5(5):957–963. doi: 10.1128/mcb.5.5.957. [DOI] [PMC free article] [PubMed] [Google Scholar]
  46. Rice S. A., Knipe D. M. Gene-specific transactivation by herpes simplex virus type 1 alpha protein ICP27. J Virol. 1988 Oct;62(10):3814–3823. doi: 10.1128/jvi.62.10.3814-3823.1988. [DOI] [PMC free article] [PubMed] [Google Scholar]
  47. Roberts M. S., Boundy A., O'Hare P., Pizzorno M. C., Ciufo D. M., Hayward G. S. Direct correlation between a negative autoregulatory response element at the cap site of the herpes simplex virus type 1 IE175 (alpha 4) promoter and a specific binding site for the IE175 (ICP4) protein. J Virol. 1988 Nov;62(11):4307–4320. doi: 10.1128/jvi.62.11.4307-4320.1988. [DOI] [PMC free article] [PubMed] [Google Scholar]
  48. Sacks W. R., Greene C. C., Aschman D. P., Schaffer P. A. Herpes simplex virus type 1 ICP27 is an essential regulatory protein. J Virol. 1985 Sep;55(3):796–805. doi: 10.1128/jvi.55.3.796-805.1985. [DOI] [PMC free article] [PubMed] [Google Scholar]
  49. Sacks W. R., Schaffer P. A. Deletion mutants in the gene encoding the herpes simplex virus type 1 immediate-early protein ICP0 exhibit impaired growth in cell culture. J Virol. 1987 Mar;61(3):829–839. doi: 10.1128/jvi.61.3.829-839.1987. [DOI] [PMC free article] [PubMed] [Google Scholar]
  50. Schaffer P. A., Carter V. C., Timbury M. C. Collaborative complementation study of temperature-sensitive mutants of herpes simplex virus types 1 and 2. J Virol. 1978 Sep;27(3):490–504. doi: 10.1128/jvi.27.3.490-504.1978. [DOI] [PMC free article] [PubMed] [Google Scholar]
  51. Sekulovich R. E., Leary K., Sandri-Goldin R. M. The herpes simplex virus type 1 alpha protein ICP27 can act as a trans-repressor or a trans-activator in combination with ICP4 and ICP0. J Virol. 1988 Dec;62(12):4510–4522. doi: 10.1128/jvi.62.12.4510-4522.1988. [DOI] [PMC free article] [PubMed] [Google Scholar]
  52. Shepard A. A., DeLuca N. A. Intragenic complementation among partial peptides of herpes simplex virus regulatory protein ICP4. J Virol. 1989 Mar;63(3):1203–1211. doi: 10.1128/jvi.63.3.1203-1211.1989. [DOI] [PMC free article] [PubMed] [Google Scholar]
  53. Southern E. M. Detection of specific sequences among DNA fragments separated by gel electrophoresis. J Mol Biol. 1975 Nov 5;98(3):503–517. doi: 10.1016/s0022-2836(75)80083-0. [DOI] [PubMed] [Google Scholar]
  54. Stow N. D., Stow E. C. Isolation and characterization of a herpes simplex virus type 1 mutant containing a deletion within the gene encoding the immediate early polypeptide Vmw110. J Gen Virol. 1986 Dec;67(Pt 12):2571–2585. doi: 10.1099/0022-1317-67-12-2571. [DOI] [PubMed] [Google Scholar]
  55. Vieira J., Messing J. The pUC plasmids, an M13mp7-derived system for insertion mutagenesis and sequencing with synthetic universal primers. Gene. 1982 Oct;19(3):259–268. doi: 10.1016/0378-1119(82)90015-4. [DOI] [PubMed] [Google Scholar]

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

RESOURCES