TABLE I.

Composition of the Different Binary Mixtures of Agonists Used in the Activation-competition Assay

	[ACh] (μM)
[Choline] (mM)		0	5	10	14	20	32	50	70	100	120	140	200
	0		X	X	X	X	X	X	X	X		X	X
	0.2	X					X			X
	0.5	X					X			X
	1	X					X			X
	2	X	X	X	X	X	X	X	X	X		X
	5	X					X			X
	10	X					X			X
	14	X					X			X
	20	X	X	X		X	X	X	X	X	X	X
	32	X					X			X
	40	X					X			X
	50	X					X			X