TABLE 1.

Comparison of K_D determined by [³H]IP₃ binding and FP assays

The K_D for each ligand was determined in CLM at 4°C either by competition binding with [³H]IP₃ or by FP. Results are means ± S.E.M., n = 3.

	IBC		NT
	[3H]IP3	FP	[3H]IP3	FP
nM
FITC-IP3	2.0 ± 0.2	3.0 ± 0.1	11.8 ± 0.2	12.5 ± 0.6
IP3	8.7 ± 1.8	9.2 ± 0.8	65.2 ± 8.2	94.8 ± 7.1
Adenophostin A	0.7 ± 0.1	0.9 ± 0.1	6.2 ± 1.6	8.6 ± 0.2