Source:http://linkedlifedata.com/resource/pubmed/id/10612421
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1-2
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pubmed:dateCreated |
2000-1-13
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pubmed:abstractText |
In rat astroglial cells, four G(omicronalpha) transcripts were found: G(omicron2alpha) mRNA (5.7 kb) and three G(omicron1alpha) mRNAs (4.0, 3.0 and 2.3 kb). However, G(omicron2alpha) but little G(omicronalpha1) proteins were present in membrane-enriched fractions. Culturing astroglial cells with forskolin (10 microM) or isoproterenol (10 microM) a beta-adrenergic agonist increased transiently in a time-dependent manner the levels of G(omicronalpha) proteins. The degradation rate of G(omicronalpha) proteins was slightly decreased by the cAMP treatment. In parallel, forskolin (10 microM) treatment increased transiently the amounts of both G(omicron1alpha) and G(omicron2alpha) mRNAs. The relative transcription rate of G(omicronalpha) gene was increased by 1.7-fold in forskolin-treated cells whereas the half-lives of G(omicron1alpha) and G(omicron2alpha) mRNAs were not significantly changed. These results suggest that cAMP regulates the transcription rate of G(omicronalpha) gene and this is compatible with the existence of a cAMP responsive element in the promoter of the G(omicronalpha) gene.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Cyclic AMP,
http://linkedlifedata.com/resource/pubmed/chemical/Forskolin,
http://linkedlifedata.com/resource/pubmed/chemical/GTP-Binding Protein alpha...,
http://linkedlifedata.com/resource/pubmed/chemical/Heterotrimeric GTP-Binding Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Isoproterenol,
http://linkedlifedata.com/resource/pubmed/chemical/RNA, Messenger
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pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
0303-7207
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
25
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pubmed:volume |
156
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
35-43
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pubmed:dateRevised |
2009-11-19
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pubmed:meshHeading |
pubmed-meshheading:10612421-Animals,
pubmed-meshheading:10612421-Animals, Newborn,
pubmed-meshheading:10612421-Astrocytes,
pubmed-meshheading:10612421-Brain,
pubmed-meshheading:10612421-Cells, Cultured,
pubmed-meshheading:10612421-Cyclic AMP,
pubmed-meshheading:10612421-Forskolin,
pubmed-meshheading:10612421-GTP-Binding Protein alpha Subunits, Gi-Go,
pubmed-meshheading:10612421-Gene Expression Regulation,
pubmed-meshheading:10612421-Heterotrimeric GTP-Binding Proteins,
pubmed-meshheading:10612421-Isoproterenol,
pubmed-meshheading:10612421-Kinetics,
pubmed-meshheading:10612421-RNA, Messenger,
pubmed-meshheading:10612421-Rats,
pubmed-meshheading:10612421-Rats, Sprague-Dawley,
pubmed-meshheading:10612421-Transcription, Genetic
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pubmed:year |
1999
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pubmed:articleTitle |
Cyclic AMP regulates G(omicronalpha) protein and mRNA levels by modulating the transcriptional rate of G(omicronalpha) gene.
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pubmed:affiliation |
Unité de Recherche, Transduction Hormonale et Régulation Cellulaire, U 486 INSERM, Faculté de Pharmacie 5, Châtenay-Malabry, France.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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