ArticleNucleic acids research1998
Influence of promoter potency on the transcriptional effects of YY1, SRF and Msx-1 in transient transfection analysis.
Article in Nucleic acids research, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed, 17 citations in OpenAlex.
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- Multiple Transcripts Encode Full-Length Human Cytomegalovirus IE1 and IE2 Proteins during Lytic Infection.Journal of virology · 2016Article
- Histone deacetylase activity represses gamma interferon-inducible HLA-DR gene expression following the establishment of a DNase I-hypersensitive chromatin conformation.Molecular and cellular biology · 2001Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Potent viral promoters/enhancers are often used to achieve high level expression of ectopic genes in transient transfection analysis. By using a GAL4-responsive transcription assay system, we show that the use of potent eukaryotic expression vectors can lead to biased transcriptional effects. Three functionally diverse transcription factors, YY1, SRF and Msx-1, were examined and each was found to exhibit a strong transrepression function in the context of the DNA binding domain of GAL4 when expressed from the cytomegalovirus (pCMV) or simian virus 40 (pSV) promoters/enhancers. An internal 15 amino acid domain of YY1 mediating transrepression in the viral promoter setting was identified. This GAL4-mediated transcriptional repression could, however, be completely relieved by using the yeast alcohol dehydrogenase promoter (pADH) to drive gene expression, which is approximately 100-fold weaker than canonical pCMV and pSV in cultured mammalian cells. In addition, low level expression achieved with the pADH vector unveiled the intrinsic transactivation functions of YY1 and SRF previously not observed with the GAL4 assay system. Our results highlight a potential pitfall in conventional pCMV- and pSV-based transfection assays and suggest that the use of a low level expression system may be preferable in most transcriptional analysis.
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Registered trials
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