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  • Title: Template selection and refinement considerations for modelling aminergic GPCR-ligand complexes.
    Author: Urmi KF, Finch AM, Griffith R.
    Journal: J Mol Graph Model; 2017 Sep; 76():488-503. PubMed ID: 28818718.
    Abstract:
    G protein-coupled receptors (GPCRs) are important targets for development of drugs for the treatment of many diseases. However, crystal structures are available for only a small fraction of these membrane bound proteins. Accurate homology models will provide opportunities for effective drug design targeting GPCRs. Recently, several serotonin receptor crystal structures were solved and needed to be evaluated as potential templates. In the first part of this work different measures of similarity in template selection were explored and methods for homology modelling, docking and refinement of aminergic GPCR-ligand complexes were developed and evaluated by comparing models of the D3-R/eticlopride complex with the crystal structure. Homology models of the three α1 adrenergic receptor subtypes and of a serotonin receptor subtype were then constructed using these methods These models were evaluated by docking a range of antagonists into them.
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