α2A-, α2B-, and α2C- adrenoceptors belong to the rhodopsin-like G-protein coupled receptors family. They are integral membrane proteins typified by a bundle of seven transmembrane helices. 50 % of the currently available drugs in the market target G-protein coupled receptors. Crystal structure of α2A-, α2B-, and α2C-adrenoceptors are not yet solved. We performed homology modeling of the human α2A-, α2B-, and α2C-adrenoceptor subtypes based on the crystal structure of the β2-adrenergic receptor. Molecular docking studies of five different antagonists toward these receptors revealed receptor subtype selectivity, and which in turn potentially guide in the rational design of subtype selective antagonists. Graphical Abstract: [Figure not available: see fulltext.] © 2013 Springer Science+Business Media New York.
Va Kumar, Bansal, Ga, Patel, Ja, and Mohan, Cab Gopi, “Structure-function prediction of α2A-, α2B-, and α2C-adrenoceptors using homology model assisted antagonist binding study”, Medicinal Chemistry Research, vol. 23, pp. 735-746, 2014.