Figure 1

Thermal unfolding of un3 parallel G4 (a), gp054a hybrid G4 (b), un2 antiparallel G4 (c) (4 μM) in 100 mM K⁺ in the absence (left panel) or presence (right panel) of 16 μM c-exNDI. Thermal unfolding was recorded over a temperature range of 20–90 °C with temperature increase of 5 °C.