Figure 1From: Primordial soup or vinaigrette: did the RNA world evolve at acidic pH?The RNA phosphodiester bond is most stable at pH 4-5 at 90°C. Hydrolysis of the dinucleoside 3',5'-UpU at 90°C as a function of pH. Figure reprinted with permission from [15] Oivanen et al. ©1998 American Chemical Society; data used with permission from [10] Järvinen et al. ©1991 American Chemical Society.Back to article page