Background:

MRS 1754 is a selective antagonist radioligand for A2B adenosine receptor with very low affinity for A1 and A3 receptors of both humans and rats[1].

The most potent displacer of [3H]MRS 1754 binding is MRS 1754. The Ki value for displacement of [3H]MRS 1754 binding to human A2B receptors expressed in HEK-293 cell membranes is 1.45±0.21 nM[1].

参考文献:
[1]. Ji X, et al. [3H]MRS 1754, a selective antagonist radioligand for A(2B) adenosine receptors. Biochem Pharmacol. 2001 Mar 15;61(6):657-63.