Source:http://linkedlifedata.com/resource/pubmed/id/12062436
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1-3
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pubmed:dateCreated |
2002-6-13
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pubmed:abstractText |
The wide spectrum of naturally occurring mutations able to activate the thyrotropin (TSH) receptor provides a useful tool to approach the structure of the active state(s) of the glycoprotein hormone receptors. Here we show that the side-chain of the highly conserved N7.49 (Asn 674) in TM7 is mandatory for activation of the TSH receptor, not only by TSH, but also by a panel of eight natural and two artificial activating mutations. Basal activity levels of the mutants were significantly decreased by suppression of the side-chain of N7.49 (N7.49A double mutants). In addition, comparative effects of the N7.49A substitution on the ten mutants demonstrate that basal activity and agonist- or mutation-stimulated activity might involve different structural changes.
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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/Asparagine,
http://linkedlifedata.com/resource/pubmed/chemical/Cyclic AMP,
http://linkedlifedata.com/resource/pubmed/chemical/Membrane Glycoproteins,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Thyrotropin,
http://linkedlifedata.com/resource/pubmed/chemical/Thyrotropin
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pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
0014-5793
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
24
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pubmed:volume |
517
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
195-200
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:12062436-Animals,
pubmed-meshheading:12062436-Asparagine,
pubmed-meshheading:12062436-Binding Sites,
pubmed-meshheading:12062436-COS Cells,
pubmed-meshheading:12062436-Cercopithecus aethiops,
pubmed-meshheading:12062436-Cyclic AMP,
pubmed-meshheading:12062436-Membrane Glycoproteins,
pubmed-meshheading:12062436-Mutagenesis, Site-Directed,
pubmed-meshheading:12062436-Protein Conformation,
pubmed-meshheading:12062436-Receptors, Thyrotropin,
pubmed-meshheading:12062436-Thyrotropin
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pubmed:year |
2002
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pubmed:articleTitle |
A conserved Asn in TM7 of the thyrotropin receptor is a common requirement for activation by both mutations and its natural agonist.
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pubmed:affiliation |
IRIBHN, Université Libre de Bruxelles, Campus Erasme, 808 route de Lennik, B-1070, Brussels, Belgium
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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