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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
|
pubmed:dateCreated |
1995-9-11
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pubmed:abstractText |
We have reported that polyglutamine (polyGln)-expanded human androgen receptors (hAR) have reduced transactivational competence in transfected cells. We presumed that maximal hAR transactivation requires a normal-size polyGln tract. Here we report, however, that hAR transactivity and polyGln-tract length are related inversely: n = 0 > 12 > 20 > 40 > 50. Thus, a normal-size polyGln tract represses the transactivational competence of a polyGln-free hAR, and polyGln expansion increases that negative effect. This observation has pathogenetic implications for X-linked spinobular muscular atrophy (Kennedy syndrome), and possibly for the autosomal dominant central neuronopathies associated with (CAG)n expansion in the translated portion of four different genes.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Apr
|
pubmed:issn |
0964-6906
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
4
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pubmed:geneSymbol |
AR,
GH
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
|
pubmed:pagination |
523-7
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:7633399-Base Sequence,
pubmed-meshheading:7633399-Cell Line,
pubmed-meshheading:7633399-DNA Primers,
pubmed-meshheading:7633399-Electroporation,
pubmed-meshheading:7633399-Glutamine,
pubmed-meshheading:7633399-Humans,
pubmed-meshheading:7633399-Molecular Sequence Data,
pubmed-meshheading:7633399-Nervous System Diseases,
pubmed-meshheading:7633399-Polyribonucleotides,
pubmed-meshheading:7633399-Receptors, Androgen,
pubmed-meshheading:7633399-Transcriptional Activation
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pubmed:year |
1995
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pubmed:articleTitle |
Evidence for a repressive function of the long polyglutamine tract in the human androgen receptor: possible pathogenetic relevance for the (CAG)n-expanded neuronopathies.
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pubmed:affiliation |
Lady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, Montreal, Quebec, Canada.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|