Linked Life Data

9005436

Source:http://linkedlifedata.com/resource/pubmed/id/9005436

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1997-1-29
pubmed:abstractText
A three-dimensional model of the human 5-HT(1a) receptor was constructed by molecular modelling, and the molecular and electronic structures of (R)- and (S)-5-fluoro-8-hydroxy-2-(dipropylamino)tetralin (UH-301) and of (R)- and (S)-8-hydroxy-2-(dipropylamino)tetralin (8-OH-DPAT) were examined by molecular mechanics and quantum mechanics calculations and molecular dynamics simulations. The receptor model has seven transmembrane alpha-helices (TMHs), organized according to a projection map of visual rhodopsin, and includes all loops between helices and the N- and C-terminal parts. Interactions of UH-301 and 8-OH-DPAT with the 5-HT(1a) receptor were examined by molecular dynamics simulations and energy minimization of receptor-ligand complexes. 8-OH-DPAT had lower electrostatic potentials around the hydroxyl group and stronger hydrogen bonding to the receptor model than had UH-301. The simulations indicated that the 5-HT(1a) receptor agonists, (R)- and (S)-8-OH-DPAT and (R)-UH-301, interacted with the receptor at a site closer to Asp82 in TMH2 than did (S)-UH-301, which is a 5-HT1a receptor antagonist. Simulations of receptor-ligand complexes indicated that Asp82, Asp116, Serl99, Thr2OO and Ile385 are essential for binding of both agonist and antagonist to the receptor.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0269-2139
pubmed:author
pubmed:issnType
Print
pubmed:volume
9
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
149-60
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Molecular modelling of UH-301 and 5-HT(1a) receptor interactions.
pubmed:affiliation
Department of Pharmacology. Institute of Medical Biology, University of Tromsø, Norway.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't