Download MendeleyCrystal Structure and Subsequent Ligand Design of a Nonriboside Partial Agonist Bound to the Adenosine A 2A Receptor.
Amelia, T., van Veldhoven, J.P.D., Falsini, M., Liu, R., Heitman, L.H., van Westen, G.J.P., Segala, E., Verdon, G., Cheng, R.K.Y., Cooke, R.M., van der Es, D., IJzerman, A.P.(2021) J Med Chem 64: 3827-3842
- PubMed: 33764785
- DOI: https://doi.org/10.1021/acs.jmedchem.0c01856
- Primary Citation of Related Structures:
7ARO - PubMed Abstract:
In this study, we determined the crystal structure of an engineered human adenosine A 2A receptor bound to a partial agonist and compared it to structures cocrystallized with either a full agonist or an antagonist/inverse agonist. The interaction between the partial agonist, belonging to a class of dicyanopyridines, and amino acids in the ligand binding pocket inspired us to develop a small library of derivatives and assess their affinity in radioligand binding studies and potency and intrinsic activity in a functional, label-free, intact cell assay. It appeared that some of the derivatives retained the partial agonist profile, whereas other ligands turned into inverse agonists. We rationalized this remarkable behavior with additional computational docking studies.
Organizational Affiliation:
Division of Drug Discovery and Safety, Leiden Academic Centre for Drug Research, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands.
