Table 1.

Expression of the Rfz-2/β₂AR chimera in Chinese hamster ovary (CHO-K) cells deficient in β-ARs and in F9 cells yields increased expression of β-AR binding, as measured by the binding of the radiolabeled, high-affinity β-adrenergic antagonist [¹²⁵I]CYP

Cell line	Vector	[125I]CYP binding, fmol/105 cells
CHO-K	EV	0.6  ±  0.2
	Rfz-2/β2AR chimera	18.0  ±  2.5
F9	EV	10.3  ±  0.9
	Rfz-2/β2AR chimera	20.6  ±  4.4

Data are expressed as the mean values (±SEM) of at least four different clones and two independent experiments. EV, empty vector control.