Table 3. EC₅₀ and E_max Values for ATP/BzATP-Induced Response in the Absence and Presence of Different Concentrations of Inhibitor.

ATP/BzATP dose–response curve		EC50 (μM)	Emax (%)
h-P2X2R	ATP without inhibitor	1.083	100
	0.2 μM of 6h	1.014	82
	0.6 μM of 6h	1.848	74
	0.8 μM of 6h	1.413	51
h-P2X4R	ATP without inhibitor	2.588	100
	1 μM of 7e	1.634	73
	3 μM of 7e	1.125	57
	6 μM of 7e	2.192	43
h-P2X7R	BzATP without inhibitor	5.497	100
	0.5 μM of 6h	9.489	77
	1.0 μM of 6h	5.724	55
	2.0 μM of 6h	6.483	50