A Three-Site Mechanism for Agonist/Antagonist Selective Binding to Vasopressin Receptors

Saleh N, Saladino G, Gervasio FL, Haensele E, Banting L, Whitley DC, Santos JSDO, Bureau R, Clark T (2016)


Publication Status: Published

Publication Type: Journal article

Publication year: 2016

Journal

Publisher: WILEY-V C H VERLAG GMBH

Book Volume: 55

Pages Range: 8008-8012

Journal Issue: 28

DOI: 10.1002/anie.201602729

Abstract

Molecular-dynamics simulations with metadynamics enhanced sampling reveal three distinct binding sites for arginine vasopressin (AVP) within its V-2-receptor (V2R). Two of these, the vestibule and intermediate sites, block (antagonize) the receptor, and the third is the orthosteric activation (agonist) site. The contacts found for the orthosteric site satisfy all the requirements deduced from mutagenesis experiments. Metadynamics simulations for V2R and its V1aR-analog give an excellent correlation with experimental binding free energies by assuming that the most stable binding site in the simulations corresponds to the experimental binding free energy in each case. The resulting three-site mechanism separates agonists from antagonists and explains subtype selectivity.

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APA:

Saleh, N., Saladino, G., Gervasio, F.L., Haensele, E., Banting, L., Whitley, D.C.,... Clark, T. (2016). A Three-Site Mechanism for Agonist/Antagonist Selective Binding to Vasopressin Receptors. Angewandte Chemie International Edition, 55(28), 8008-8012. https://dx.doi.org/10.1002/anie.201602729

MLA:

Saleh, Noureldin, et al. "A Three-Site Mechanism for Agonist/Antagonist Selective Binding to Vasopressin Receptors." Angewandte Chemie International Edition 55.28 (2016): 8008-8012.

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