Table 2.

Binding constants (log K_a) determined from the UV–Vis and fluorescence titration experiments of MPc with G4 and duplex DNAs in Tris buffer (100 mM KCl, 10 mM Tris pH 7.4).

	HTelo	cMyc	ds26
NiPc	5.2 (± 0.1)1	6.3 (± 0.2)1	n.d
ZnPc	6.7 (± 0.4)1 5.2(± 0.1)2	6.3 (± 0.7)1 6.3 (± 0.2)2	n.d 4.6 (± 0.4)2

nd no determined

¹Obtained by UV–Vis titrations. ²Obtained by fluorescence titrations