Figure 3.

Application of PaNDA to a 26-nt therapeutic DNA aptamer NU172. (A) Guanine imino region in the 1H-15N HSQC spectra recorded for the 13C,15N-labeled DNA aptamer NU172 at 12°C and 37°C in a buffer of 10 mM potassium phosphate (pH 7.4) and 100 mM NaCl, and 5% D2O. (B) Corresponding region of the spectra recorded for NU172 in a human serum. (C) Decay of the NU172 HSQC signals due to degradation in the serum.