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. 2015 Dec 3;5:17944. doi: 10.1038/srep17944

Figure 2. Coexistence of i-motifs and protonated hairpins.

Figure 2

(a) Imino region of 1H NMR spectra of d(G2C4)4 at 5 °C and pH 4.7, 6.0, and 7.2. (b) Imino region of 1H NMR spectra of d(G2C4)4 at 5, 25, and 37 °C at pH 4.7. The vertical scale of the spectral region indicated by the dotted box has been enlarged three-fold. (c) Imino region of 1H NMR spectra of d(G2C4)8 at 5 °C and pH 4.7, 6.0, and 7.2. (d) Imino region of 1H NMR spectra of d(G2C4)8 at 5, 25, and 37 °C at pH 4.7. The vertical scale of the spectral region indicated by the dotted box has been enlarged three-fold.