Figure 7.
(A) Temperature dependence of the fraction unfolded obtained from CD-melting curves of hsp17 (top) and hsp17rep (bottom). (B) Temperature dependence of Gibbs energies of the base-pair stability. ΔGdiss values (circles) were calculated from the imino exchange rates obtained at catalyst concentrations of 2 and 29 mM HPO42− using internal and external transition state parameters. Dashed lines are extrapolations of the Gibbs energy assuming the nucleobase pair is still formed. Grey-shaded area in (A) and (B) highlights the temperature range Tm ± 2.5°C.