Matches in SemOpenAlex for { <https://semopenalex.org/work/W2149606427> ?p ?o ?g. }
- W2149606427 endingPage "2008" @default.
- W2149606427 startingPage "1997" @default.
- W2149606427 abstract "To better define the activities on herpes simplex virus type 1 gene expression of temperature-sensitive and wild-type forms of the transcriptional regulatory protein ICP4, regulatory sequences from immediate-early, early, and late herpes simplex virus genes were fused to the gene for chloramphenicol acetyltransferase (CAT). These constructs were used in trans induction and cotransfection experiments with wild-type and temperature-sensitive mutant alleles of ICP4. The ICP4 genes used in this study were cloned from the KOS strain (wild type) and two phenotypically distinct temperature-sensitive ICP4 mutants, tsB32 and tsL14 (DeLuca et al., J. Virol. 52:767-776, 1984), both alone and in conjunction with three other immediate-early genes. The latter series of plasmids was used to assess the influence of additional immediate-early gene products on gene expression in the presence of a given ICP4 allele. The results of this study demonstrate that the phenotypes of these ICP4 mutants observed in cell culture at the nonpermissive temperature were determined in part by activities associated with the mutant ICP4 polypeptides and that these activities differed from those of wild-type ICP4. Low levels of wild-type ICP4 had a marginal but reproducible stimulatory effect on immediate-early CAT gene expression, especially the pIE4/5CAT chimera. This effect was diminished with increasing quantities of ICP4, suggesting an inhibitory role for the wild-type form of the protein. The ICP4 mutants had a strong stimulatory effect on immediate-early CAT expression, consistent with their phenotypes at 39 degrees C. The mutant forms of the ICP4 polypeptide differed in their ability to induce CAT activity from an early chimeric gene. Thus, the tsL14 form of ICP4 was effective in early gene induction (i.e., ptkCAT was induced), whereas the ICP4 derived from tsB32 was slightly inhibitory. Cotransfection of tsB32 ICP4 simultaneously with other immediate-early genes resulted in a marginal increase in ptkCAT induction. This induction was enhanced when the gene for ICP4 was inactivated by restriction enzyme cleavage, substantiating the inhibitory effect of the tsB32 form of ICP4. The two mutant ICP4 genes (tsB32 and tsL14) were unable to trans-activate either of the late CAT constructs (p5CAT and pL42CAT) tested. Cotransfecting tsL14 ICP4 with the other immediate-early genes resulted in activation of p5CAT but not pL42CAT. Taken together, these studies demonstrate that (i) low levels of wild-type ICP4 have stimulatory effect on immediate-early promoters and that higher concentrations of wild-type ICP4 have an inhibitory effect on these promoters, (ii) isolated mutant form of ICP4 exhibit activities that reflect the phenotypes of the mutants from which they were isolated, and (iii) immediate-early gene products other than ICP4 are involved in determining the distinct phenotypes of the two mutants at 39 degrees Celsius." @default.
- W2149606427 created "2016-06-24" @default.
- W2149606427 creator A5039113255 @default.
- W2149606427 creator A5082742080 @default.
- W2149606427 date "1985-08-01" @default.
- W2149606427 modified "2023-10-18" @default.
- W2149606427 title "Activation of Immediate-Early, Early, and Late Promoters by Temperature-Sensitive and Wild-Type Forms of Herpes Simplex Virus Type 1 Protein ICP4" @default.
- W2149606427 cites W123433535 @default.
- W2149606427 cites W1491325606 @default.
- W2149606427 cites W1511816912 @default.
- W2149606427 cites W1588791925 @default.
- W2149606427 cites W1606830172 @default.
- W2149606427 cites W1608504420 @default.
- W2149606427 cites W1613555203 @default.
- W2149606427 cites W1645759506 @default.
- W2149606427 cites W1690553754 @default.
- W2149606427 cites W1811101334 @default.
- W2149606427 cites W1820557301 @default.
- W2149606427 cites W1891768184 @default.
- W2149606427 cites W1931233319 @default.
- W2149606427 cites W1940726313 @default.
- W2149606427 cites W1956073586 @default.
- W2149606427 cites W1964857093 @default.
- W2149606427 cites W1965372133 @default.
- W2149606427 cites W1971922814 @default.
- W2149606427 cites W1973014323 @default.
- W2149606427 cites W1975149928 @default.
- W2149606427 cites W1991717074 @default.
- W2149606427 cites W2019410656 @default.
- W2149606427 cites W2019536275 @default.
- W2149606427 cites W2039416580 @default.
- W2149606427 cites W2040114529 @default.
- W2149606427 cites W2040276985 @default.
- W2149606427 cites W2056113253 @default.
- W2149606427 cites W2058465077 @default.
- W2149606427 cites W2066709551 @default.
- W2149606427 cites W2069892944 @default.
- W2149606427 cites W2077587402 @default.
- W2149606427 cites W2102238885 @default.
- W2149606427 cites W2116722170 @default.
- W2149606427 cites W2119232680 @default.
- W2149606427 cites W2128292801 @default.
- W2149606427 cites W2144206181 @default.
- W2149606427 cites W2146481809 @default.
- W2149606427 cites W2157589212 @default.
- W2149606427 cites W2167414261 @default.
- W2149606427 doi "https://doi.org/10.1128/mcb.5.8.1997-2008.1985" @default.
- W2149606427 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/366918" @default.
- W2149606427 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/3018543" @default.
- W2149606427 hasPublicationYear "1985" @default.
- W2149606427 type Work @default.
- W2149606427 sameAs 2149606427 @default.
- W2149606427 citedByCount "185" @default.
- W2149606427 countsByYear W21496064272012 @default.
- W2149606427 countsByYear W21496064272014 @default.
- W2149606427 countsByYear W21496064272015 @default.
- W2149606427 countsByYear W21496064272016 @default.
- W2149606427 countsByYear W21496064272017 @default.
- W2149606427 countsByYear W21496064272018 @default.
- W2149606427 countsByYear W21496064272019 @default.
- W2149606427 countsByYear W21496064272020 @default.
- W2149606427 countsByYear W21496064272021 @default.
- W2149606427 countsByYear W21496064272022 @default.
- W2149606427 countsByYear W21496064272023 @default.
- W2149606427 crossrefType "journal-article" @default.
- W2149606427 hasAuthorship W2149606427A5039113255 @default.
- W2149606427 hasAuthorship W2149606427A5082742080 @default.
- W2149606427 hasConcept C101762097 @default.
- W2149606427 hasConcept C104317684 @default.
- W2149606427 hasConcept C143065580 @default.
- W2149606427 hasConcept C150194340 @default.
- W2149606427 hasConcept C159047783 @default.
- W2149606427 hasConcept C18903297 @default.
- W2149606427 hasConcept C207583985 @default.
- W2149606427 hasConcept C2522874641 @default.
- W2149606427 hasConcept C2777299769 @default.
- W2149606427 hasConcept C2781196997 @default.
- W2149606427 hasConcept C54355233 @default.
- W2149606427 hasConcept C86803240 @default.
- W2149606427 hasConceptScore W2149606427C101762097 @default.
- W2149606427 hasConceptScore W2149606427C104317684 @default.
- W2149606427 hasConceptScore W2149606427C143065580 @default.
- W2149606427 hasConceptScore W2149606427C150194340 @default.
- W2149606427 hasConceptScore W2149606427C159047783 @default.
- W2149606427 hasConceptScore W2149606427C18903297 @default.
- W2149606427 hasConceptScore W2149606427C207583985 @default.
- W2149606427 hasConceptScore W2149606427C2522874641 @default.
- W2149606427 hasConceptScore W2149606427C2777299769 @default.
- W2149606427 hasConceptScore W2149606427C2781196997 @default.
- W2149606427 hasConceptScore W2149606427C54355233 @default.
- W2149606427 hasConceptScore W2149606427C86803240 @default.
- W2149606427 hasIssue "8" @default.
- W2149606427 hasLocation W21496064271 @default.
- W2149606427 hasOpenAccess W2149606427 @default.
- W2149606427 hasPrimaryLocation W21496064271 @default.
- W2149606427 hasRelatedWork W1425291984 @default.
- W2149606427 hasRelatedWork W1702322095 @default.
- W2149606427 hasRelatedWork W1993339219 @default.