Figure 2
From: Prebiotic formation of cyclic dipeptides under potentially early Earth conditions
Effects of temperature and pH on the formation cyclo-Pro-Pro in the reaction of Pro with P3m. All reactions were controlled under standard conditions. (a) The formation of cyclo (Pro-Pro) at various temperature was assayed at pH 10.7. (b) The formation of cyclo-Pro-Pro at various pHs was assayed at 85 °C.
