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. 2003 Jul 15;31(14):4001–4005. doi: 10.1093/nar/gkg462

Figure 3.

Figure 3

(a) AFM image of a ‘flower-like’ complex formed at 20:1 G4:DNA ratio. Higher resolution images (centred on regions marked X and Y) of the substrate background show features consistent with a densely packed layer of G4. Scale bar and z scale in nm, 50 and 5, 15 and 5, 13 and 5. (b) Time-lapse images showing the effect of DNase I on G4–DNA complex, 1:1 ratio, incubated for 15 min before deposition and imaged in 1 mM PBS, containing 2 mM MnCl2 and 1mM NiCl2, pH 7.4. Scale bar, 100 nm and z scale, 7 nm.