Figure 4.
Panel A: Docking poses of 11 (with carbon atoms colored in green), 12 (with carbons in orange), and 13 (with carbons colored in cyan) in the binding site of the 1-A2AAR structure. The bulky N6 aromatic rings of the agonists are located in a hydrophobic pocket at the extracellular region of TM6, TM7, EL2, and EL3. Panel B: predicted binding orientation of 20 in the binding site of 1-A2AAR. The key H-bond interactions between the compounds and the residues of the binding pocket are highlighted as dotted lines.