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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
1999-6-23
pubmed:abstractText
The Tie2 gene encodes a vascular endothelium-specific receptor tyrosine kinase that is required for normal vascular development and is also upregulated during angiogenesis. The regulatory regions of the Tie2 gene that are required for endothelium-specific gene expression in vivo have been identified. However, the transcription factors required for Tie2 gene expression remain largely unknown. We have identified highly conserved binding sites for Ets transcription factors in the Tie2 promoter. Mutations in 2 particular binding sites lead to a 50% reduction in the endothelium-specific activity of the promoter. We have compared the ability of several members of the Ets family to transactivate the Tie2 promoter. Our results demonstrate that 1 of 3 distinct isoforms of the novel Ets transcription factor NERF, NERF2, is expressed in endothelial cells and can strongly transactivate the regulatory regions of the Tie2 gene in comparison to other Ets factors, which have little or no effect. NERF2 can bind to the Tie2 promoter Ets sites in electrophoretic mobility shift assays. These studies support a role for Ets factors in the regulation of vascular-specific gene expression and suggest that the novel Ets factor NERF2 may be a critical transcription factor in specifying the expression of the Tie2 gene in vascular endothelial cells.
pubmed:grant
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0009-7330
pubmed:author
pubmed:issnType
Print
pubmed:day
28
pubmed:volume
84
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1177-85
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed-meshheading:10347092-Base Sequence, pubmed-meshheading:10347092-Cells, Cultured, pubmed-meshheading:10347092-DNA-Binding Proteins, pubmed-meshheading:10347092-Endothelium, Vascular, pubmed-meshheading:10347092-Gene Expression Regulation, Enzymologic, pubmed-meshheading:10347092-Genes, Reporter, pubmed-meshheading:10347092-Humans, pubmed-meshheading:10347092-Kidney, pubmed-meshheading:10347092-Luciferases, pubmed-meshheading:10347092-Molecular Sequence Data, pubmed-meshheading:10347092-Mutagenesis, pubmed-meshheading:10347092-Neovascularization, Physiologic, pubmed-meshheading:10347092-Point Mutation, pubmed-meshheading:10347092-Promoter Regions, Genetic, pubmed-meshheading:10347092-Receptor, TIE-2, pubmed-meshheading:10347092-Receptor Protein-Tyrosine Kinases, pubmed-meshheading:10347092-Transcription Factors, pubmed-meshheading:10347092-Transcriptional Activation, pubmed-meshheading:10347092-Umbilical Veins
pubmed:year
1999
pubmed:articleTitle
Role of the Ets transcription factors in the regulation of the vascular-specific Tie2 gene.
pubmed:affiliation
New England Baptist Bone and Joint Institute, Beth Israel Deaconess Medical Center, Boston, MA, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't