Structural Determinants of A<sub>3</sub> Adenosine Receptor Activation: Nucleoside Ligands at the Agonist/Antagonist Boundary
作者:Zhan-Guo Gao、Soo-Kyung Kim、Thibaud Biadatti、Wangzhong Chen、Kyeong Lee、Dov Barak、Seong Gon Kim、Carl R. Johnson、Kenneth A. Jacobson
DOI:10.1021/jm020211+
日期:2002.9.1
Trp243 (6.48) side chain, involved in recognition of the classical (nonnucleoside) A(3)AR antagonists but not adenosine-derived ligands, displayed a characteristic movement exclusively upon docking of agonists. Thus, A(3)AR activation appeared to require flexibility at the 5'- and 3'-positions, which was diminished in (N)-methanocarba, spiro, and epoxide analogues, and was characteristic of ribose interactions