Fig. 7.

First-order rate constants (s⁻¹) in neutral solution at 25° (blue) and 100 °C (red) for the deamination (a), depurination (u), and depyrimidination (y) of deoxyguanosine, deoxythymidine, deoxycytidine, and deoxyadenosine, from ref. 37. Thus, Ca, Aa, and Ga represent the deamination of deoxycytidine, deoxyadenosine, and deoxyguanosine; Cy and Ty represent cleavage of the cleavage of the linkage between a pyrimidine base and 2-deoxyribose; and Au and Gu represent cleavage of the linkage between a purine base and 2-deoxyribose.