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Issue 6, 2015
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Exploring the recognition pathway at the human A2A adenosine receptor of the endogenous agonist adenosine using supervised molecular dynamics simulations

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Abstract

Adenosine is a naturally occurring purine nucleoside that exerts a variety of important biological functions through the activation of four G protein-coupled receptor (GPCR) isoforms, namely the A1, A2A, A2B and A3 adenosine receptors (ARs). Recently, the X-ray structure of adenosine-bound hA2A AR has been solved, thus providing precious structural details on receptor recognition and activation mechanisms. To date, however, little is still known about the possible recognition pathway the endogenous agonist might go through while approaching the hA2A AR from the extracellular environment. In the present work, we report the adenosine-hA2A AR recognition pathway through the analysis of a series of Supervised Molecular Dynamics (SuMD) trajectories. Interestingly, a possible energetically stable meta-binding site has been detected and characterized.

Graphical abstract: Exploring the recognition pathway at the human A2A adenosine receptor of the endogenous agonist adenosine using supervised molecular dynamics simulations

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Publication details

The article was received on 12 Jan 2015, accepted on 17 Apr 2015 and first published on 20 Apr 2015


Article type: Concise Article
DOI: 10.1039/C5MD00016E
Citation: Med. Chem. Commun., 2015,6, 1081-1085
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    Exploring the recognition pathway at the human A2A adenosine receptor of the endogenous agonist adenosine using supervised molecular dynamics simulations

    D. Sabbadin, A. Ciancetta, G. Deganutti, A. Cuzzolin and S. Moro, Med. Chem. Commun., 2015, 6, 1081
    DOI: 10.1039/C5MD00016E

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