Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
39
pubmed:dateCreated
1995-11-6
pubmed:abstractText
We have utilized a genetic selection system in yeast to identify novel estrogen-responsive genes within the human genome and to define the sequences in the BRCA-1 gene responsible for its estrogen responsiveness. This approach led to the identification of a new subclass within the Alu family of DNA repeats which have diverged from known Alu sequences and have acquired the ability to function as estrogen receptor-dependent enhancers. Importantly, these new elements confer receptor-dependent estrogen responsiveness to a heterologous promoter when assayed in mammalian cells. This transcriptional activity can be attenuated by the addition of either of three different classes of estrogen receptor antagonists, indicating that these elements function as classical estrogen receptor-dependent enhancers. Furthermore, this enhancer activity is restricted to a specific subset of DNA repeats because consensus Alu elements of four major subfamilies do not respond to the estrogen receptor. Previously, most Alu sequences have been considered to be functionally inert. However, this work provides strong evidence that a significant subset can confer estrogen responsiveness upon a promoter within which they are located. Clearly, Alu sequences must now be considered as important contributors to the regulation of gene transcription in estrogen receptor-containing cells.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0021-9258
pubmed:author
pubmed:issnType
Print
pubmed:day
29
pubmed:volume
270
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
22777-82
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed-meshheading:7559405-Animals, pubmed-meshheading:7559405-BRCA1 Protein, pubmed-meshheading:7559405-Base Sequence, pubmed-meshheading:7559405-Cell Line, pubmed-meshheading:7559405-Consensus Sequence, pubmed-meshheading:7559405-DNA-Binding Proteins, pubmed-meshheading:7559405-Enhancer Elements, Genetic, pubmed-meshheading:7559405-Genome, Human, pubmed-meshheading:7559405-Humans, pubmed-meshheading:7559405-Kinetics, pubmed-meshheading:7559405-Mammals, pubmed-meshheading:7559405-Molecular Sequence Data, pubmed-meshheading:7559405-Neoplasm Proteins, pubmed-meshheading:7559405-Promoter Regions, Genetic, pubmed-meshheading:7559405-Receptors, Estrogen, pubmed-meshheading:7559405-Repetitive Sequences, Nucleic Acid, pubmed-meshheading:7559405-Restriction Mapping, pubmed-meshheading:7559405-Saccharomyces cerevisiae, pubmed-meshheading:7559405-Transcription, Genetic, pubmed-meshheading:7559405-Transcription Factors, pubmed-meshheading:7559405-Tumor Cells, Cultured
pubmed:year
1995
pubmed:articleTitle
Identification of a new subclass of Alu DNA repeats which can function as estrogen receptor-dependent transcriptional enhancers.
pubmed:affiliation
Department of Pharmacology, Duke University Medical School, Durham, North Carolina 27710, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't