alexa 3-Dimensional structures of G protein-coupled receptors and binding sites of agonists and antagonists.
Chemistry

Chemistry

Medicinal Chemistry

Author(s): Goddard WA rd, Abrol R

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Abstract We summarize here recent progress in predicting the 3-dimensional (3D) structure of G protein-coupled receptors (GPCR) and in predicting the binding sites for various agonists and antagonists. These receptors play a critical role in cell communications (dopamine, histamine, epinephrine, and serotonin) and in sensing the outside world (vision, smell, taste, and pain). There are no experimental 3D structures available for human GPCR despite their vital function and importance as therapeutic targets. Indeed, considering every form of life, there is an experimental structure for only 1 GPCR: bovine rhodopsin. Consequently, we developed the MembStruk method to predict the 3D structure without using homology. We then validated our predicted structures by using them to predict their binding sites and binding energies for strongly binding agonists and antagonists. The results were in excellent agreement with available binding and mutation experiments. We will summarize the results for adrenergic receptors, dopamine receptors, chemokine receptors, muscarinic acetylcholine receptors, and a tetrapeptide receptor (mas-related gene C11).
This article was published in J Nutr and referenced in Medicinal Chemistry

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