Book contents
- Frontmatter
- Contents
- List of contributors
- Preface
- Part I Introduction: definition and classification of the human herpesviruses
- Part II Basic virology and viral gene effects on host cell functions: alphaherpesviruses
- 5 Genetic comparison of human alphaherpesvirus genomes
- 6 Alphaherpes viral genes and their functions
- 7 Entry of alphaherpesviruses into the cell
- 8 Early events pre-initiation of alphaherpes viral gene expression
- 9 Initiation of transcription and RNA synthesis, processing and transport in HSV and VZV infected cells
- 10 Alphaherpesvirus DNA replication
- 11 Envelopment of HSV nucleocapsids at the inner nuclear membrane
- 12 The egress of alphaherpesviruses from the cell
- 13 The strategy of herpes simplex virus replication and takeover of the host cell
- Part II Basic virology and viral gene effects on host cell functions: betaherpesviruses
- Part II Basic virology and viral gene effects on host cell functions: gammaherpesviruses
- Part III Pathogenesis, clinical disease, host response, and epidemiology: HSV-1 and HSV-2
- Part III Pathogenesis, clinical disease, host response, and epidemiology: VZU
- Part III Pathogenesis, clinical disease, host response, and epidemiology: HCMV
- Part III Pathogenesis, clinical disease, host response, and epidemiology: HHV- 6A, 6B, and 7
- Part III Pathogenesis, clinical disease, host response, and epidemiology: gammaherpesviruses
- Part IV Non-human primate herpesviruses
- Part V Subversion of adaptive immunity
- Part VI Antiviral therapy
- Part VII Vaccines and immunothgerapy
- Part VIII Herpes as therapeutic agents
- Index
- Plate section
- References
8 - Early events pre-initiation of alphaherpes viral gene expression
from Part II - Basic virology and viral gene effects on host cell functions: alphaherpesviruses
Published online by Cambridge University Press: 24 December 2009
- Frontmatter
- Contents
- List of contributors
- Preface
- Part I Introduction: definition and classification of the human herpesviruses
- Part II Basic virology and viral gene effects on host cell functions: alphaherpesviruses
- 5 Genetic comparison of human alphaherpesvirus genomes
- 6 Alphaherpes viral genes and their functions
- 7 Entry of alphaherpesviruses into the cell
- 8 Early events pre-initiation of alphaherpes viral gene expression
- 9 Initiation of transcription and RNA synthesis, processing and transport in HSV and VZV infected cells
- 10 Alphaherpesvirus DNA replication
- 11 Envelopment of HSV nucleocapsids at the inner nuclear membrane
- 12 The egress of alphaherpesviruses from the cell
- 13 The strategy of herpes simplex virus replication and takeover of the host cell
- Part II Basic virology and viral gene effects on host cell functions: betaherpesviruses
- Part II Basic virology and viral gene effects on host cell functions: gammaherpesviruses
- Part III Pathogenesis, clinical disease, host response, and epidemiology: HSV-1 and HSV-2
- Part III Pathogenesis, clinical disease, host response, and epidemiology: VZU
- Part III Pathogenesis, clinical disease, host response, and epidemiology: HCMV
- Part III Pathogenesis, clinical disease, host response, and epidemiology: HHV- 6A, 6B, and 7
- Part III Pathogenesis, clinical disease, host response, and epidemiology: gammaherpesviruses
- Part IV Non-human primate herpesviruses
- Part V Subversion of adaptive immunity
- Part VI Antiviral therapy
- Part VII Vaccines and immunothgerapy
- Part VIII Herpes as therapeutic agents
- Index
- Plate section
- References
Summary
The regulated transcription of the HSV IE (immediate–early, α) genes has been a model system for elucidating principles and mechanisms of combinatorial-differential regulation, basic RNAPII -directed transcription, and multiprotein assembly specificities. The regulation exemplifies viral mechanisms dedicated to the recruitment of cellular components into complex viral–host interactions that illustrate general parameters of protein–protein, DNA –protein, RNA transcription, and protein complex assembly. Continued studies hold promise of advancing the understanding of the complexities of biochemical interactions in gene expression as well as complex cellular response pathways. The regulation of the IE genes within specific contexts may also lead to the understanding of signals and pathways which modulate viral infection and determine the extent of lytic-latent infection. While HSV has been extensively studied and will represent the focus of this review, the regulatory domain of the VZV IE gene (IE62) contains similar elements and is regulated by similar mechanisms.
The HSV IE regulatory domains: multiple sites for differential regulation
The regulatory domains of the HSV IE genes have been the focus of numerous studies that have defined the sequence elements and their contributions to the basal and induced levels of transcription. These IE domains typically consist of a reiterated inducible enhancer core element (consensus: TAATGARAT) that is flanked by binding sites for members of the ets and kruppel transcription family (Fig. 8.1, left) (Roizman and Sears, 1996; Vogel and Kristie, 2001).
- Type
- Chapter
- Information
- Human HerpesvirusesBiology, Therapy, and Immunoprophylaxis, pp. 112 - 127Publisher: Cambridge University PressPrint publication year: 2007
References
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