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Thiviyanathan et al. 10.1073/pnas.0403079101. |
Fig. 6. Exchangeable proton spectra. (a) 2D 15N- heteronuclear single quantum coherence spectra optimized for imino signals showing the assignment of the G and U signals. The weak cross peaks marked as x and y are assigned to G1 and G11, respectively. (b) Imino-imino region of the 2D NOESY spectra obtained in 95% H2O, showing that the stem region is base-paired.