The change in heat capacity ΔCp
for the folding of ribonuclease A was determined using
differential scanning calorimetry and thermal denaturation
curves. The methods gave equivalent results, ΔCp
= 1.15 ± 0.08 kcal mol−1 K−1.
Estimates of the conformational stability of ribonuclease
A based on these results from thermal unfolding are in
good agreement with estimates from urea unfolding analyzed
using the linear extrapolation method.