Figure 2.

Circular dichroism spectra of mixtures with 50 μm Λ,Λ-B in 20 mm phosphate buffer (pH 6.5), 100 mm NaCl water solution: [d(CGCGAATTCGCG)]₂ (green curve), ct-DNA (red curve, mostly covered by the green curve) and [poly(dAdT)]₂ (blue curve). The [nucleotides]/[Λ,Λ-B] ratio is 24:1 for all mixtures. Inset: Luminescence spectra of the corresponding mixtures with the same colour coding, excitation wavelength: λ=410 nm. All spectra were recorded about half an hour after mixing at 25°.