Regulation of transcription in vitro from herpes simplex virus genes
| Autor: | J L Betz, Lewis I. Pizer, D G Tedder, Kent W. Wilcox, Peter Beard |
|---|---|
| Rok vydání: | 1986 |
| Předmět: |
Therapeutic gene modulation
Time Factors Genes Viral Transcription Genetic Immunology E-box Biology Virus Replication medicine.disease_cause Microbiology Viral Proteins chemistry.chemical_compound Capsid Transcription (biology) Virology medicine Simplexvirus Gene Glycoproteins Cell Nucleus Regulation of gene expression Cell-Free System Promoter Molecular biology Herpes simplex virus Gene Expression Regulation chemistry Insect Science DNA Viral DNA Research Article |
| Zdroj: | Journal of Virology. 60:950-959 |
| ISSN: | 1098-5514 0022-538X |
| DOI: | 10.1128/jvi.60.3.950-959.1986 |
| Popis: | In vitro transcription assays were carried out by using as templates DNAs cut from the herpes simplex virus early glycoprotein D gene, the late glycoprotein C gene, the late VP5 gene, and the immediate-early ICP22 gene. Nuclear extracts from suspension cultures of uninfected HeLa cells effectively synthesized RNAs from genes of the immediate-early and delayed-early classes. To a lesser extent, the extracts also used DNAs cut from the late genes as templates. Transcription from the immediate-early gene was inhibited in extracts prepared from infected cells. Analysis of the proteins in infected-cell extracts by gel electrophoresis, transfer to nitrocellulose, and probing with specific antibody demonstrated the presence of the viral regulatory protein ICP4. Chromatographic fractionation of nuclear extract from infected cells yielded a mixture of proteins (fraction VIII) enriched in ICP4 (S.W. Faber and K.W. Wilcox, Nucleic Acids Res., 14:6067-6083, 1986). Addition of fraction VIII to the in vitro assay affected transcription. Depending on the DNA in the assay, an inhibitory or stimulatory effect was observed. Inhibition of RNA synthesis was found when DNA from the immediate-early gene was used as a template, and stimulation was found when DNA from the early or late gene was used. |
| Databáze: | OpenAIRE |
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