Source:http://linkedlifedata.com/resource/pubmed/id/16572483
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
2006-4-11
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pubmed:abstractText |
Allosteric modulators of receptor binding are known for a variety of membrane receptors. In case of muscarinic receptors, a considerable number of structurally divergent modulators have been described. For the M2 receptor subtype which has a high sensitivity to allosteric modulation most of the allosteric agents bind to the common allosteric binding site of the receptor protein. In this study, a series of DUO compounds characterized by a bispyridinium middle chain and lateral benzyloximeether moieties of a systematically varied substitution pattern has been evaluated with regard to their allosteric potency to affect M2 receptors, whose orthosteric site was blocked by [3H]N-methylscopolamine. The variations in potency were found to be surprisingly small and the structure-activity relationships of the DUO compounds diverged from those of correspondingly substituted hexamethonio-type allosteric modulators. One has to conclude that DUO compounds bind in an "atypical" manner which is in agreement with recently reported side-directed mutagenesis and molecular modeling studies.
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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/Muscarinic Antagonists,
http://linkedlifedata.com/resource/pubmed/chemical/N-Methylscopolamine,
http://linkedlifedata.com/resource/pubmed/chemical/Pyridinium Compounds,
http://linkedlifedata.com/resource/pubmed/chemical/Receptor, Muscarinic M2,
http://linkedlifedata.com/resource/pubmed/chemical/Tritium
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pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
0365-6233
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
339
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
207-12
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:16572483-Allosteric Regulation,
pubmed-meshheading:16572483-Animals,
pubmed-meshheading:16572483-Binding, Competitive,
pubmed-meshheading:16572483-Muscarinic Antagonists,
pubmed-meshheading:16572483-Myocardium,
pubmed-meshheading:16572483-N-Methylscopolamine,
pubmed-meshheading:16572483-Pyridinium Compounds,
pubmed-meshheading:16572483-Quantitative Structure-Activity Relationship,
pubmed-meshheading:16572483-Receptor, Muscarinic M2,
pubmed-meshheading:16572483-Swine,
pubmed-meshheading:16572483-Tritium
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pubmed:year |
2006
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pubmed:articleTitle |
Muscarinic allosteric modulators: atypical structure-activity-relationships in bispyridinium-type compounds.
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pubmed:affiliation |
Institute of Pharmacy and Food Chemistry, University of Würzburg, Würzburg, Germany.
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pubmed:publicationType |
Journal Article,
Comparative Study,
In Vitro,
Research Support, Non-U.S. Gov't
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