Table 1.

The conformational stability of the isomolar mixture of NDB1/NDB2, and the dependence of ΔG _d on Gd.HCl concentration, m, measured without and with ATP, and at different concentrations of the potentiator PBF

	(kcal/M)	m (kcal/mol/M)	n
Control 0 ATP	6.86 ± 0.34	3.16 ± 0.16	4
PBF 25 nM	4.81 ± 0.68	3.43 ± 0.27	7
2 mM ATP	5.72 ± 0.79	2.68 ± 0.32	3
PBF 12.5 nM + 2 mM ATP	4.92 ± 0.55	3.43 ± 0.22	1
PBF 25 nM + 2 mM ATP	5.04 ± 0.11	4.37 ± 0.28	4
PBF 200 nM + 2 mM ATP	5.63 ± 0.05	5.00 ± 0.12	1

Data represent the results of the fit ± SD of the mean of data shown in Fig. 3 with Eq. 5