Dynamics and structural determinants of ligand recognition of the 5-HT6 receptor.
J Comput Aided Mol Des
; 29(12): 1137-49, 2015 Dec.
Article
em En
| MEDLINE
| ID: mdl-26572911
ABSTRACT
In order to identify molecular models of the human 5-HT6 receptor suitable for virtual screening, homology modeling and membrane-embedded molecular dynamics simulations were performed. Structural requirements for robust enrichment were assessed by an unbiased chemometric analysis of enrichments from retrospective virtual screening studies. The two main structural features affecting enrichment are the outward movement of the second extracellular loop and the formation of a hydrophobic cavity deep in the binding site. These features appear transiently in the trajectories and furthermore the stretches of uniformly high enrichment may only last 4-10 ps. The formation of the inner hydrophobic cavity was also linked to the active-like to inactive-like transition of the receptor, especially the so-called connector region. The best structural models provided significant and robust enrichment over three independent ligand sets.
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Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Desenho de Fármacos
/
Receptores de Serotonina
Limite:
Humans
Idioma:
En
Ano de publicação:
2015
Tipo de documento:
Article