ArticleNucleic acids research1994
One of two Ets-binding sites in the cytokeratin EndoA enhancer is essential for enhancer activity and binds to Ets-2 related proteins.
Article in Nucleic acids research, 1994. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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6 citing papers in PubMed, 16 citations in OpenAlex.
- Article
- Intermediate filaments: a historical perspective.Experimental cell research · 2007Review
- Regulation of keratin and integrin gene expression in cancer and drug resistance.Cytotechnology · 1998Article
- Isolation and characterization of a novel epithelium-specific transcription factor, ESE-1, a member of the ets family.Molecular and cellular biology · 1997Article
- Oncogenic regulation and function of keratins 8 and 18.Cancer metastasis reviews · 1996Review
- Identification of target genes for the Ewing's sarcoma EWS/FLI fusion protein by representational difference analysis.Molecular and cellular biology · 1995Article
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4 authors at 1 institution in 1 country.
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Abstract
Expression of the mouse cytokeratin EndoA gene is restricted in endodermal and epithelial cells, and is regulated by an enhancer that is located 1 kilobase (kb) 3' downstream from the gene. The enhancer consists of six direct repeats, of which each contains two predicted Ets binding sites (EBS1 and EBS2) containing GGAA as a core. Mutation analysis showed that EBS1 is essential for the enhancer activity and additional effects of EBS2, suggesting that some Ets-related proteins bind and activate the enhancer through EBS1. We also showed that Ets-2 mRNA is expressed in PYS-2 cells and that Ets-2 protein produced by E. coli interacts with EBS1 but not with EBS2. Using co-transfection assays, we showed that Ets-2 can trans-activate the enhancer in PYS-2 cells. Mutations that impair Ets-2 binding abolished the activity of the EndoA enhancer. The results obtained from the binding competition assay using an Ets-2 specific antibody, however, suggest that EBS1 binds to an Ets protein which is distinct from Ets-2. These data show that Ets-2 related protein binds and activates the EndoA enhancer in a sequence-specific fashion.
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