Table 1.

Parameters of the CD-monitored unfolding curves of [all-Ala] and [28-111]

α-LA	Cm, m*
	30 mM NaCl	20 mM Na2SO4	50 mM NaCIO4
[all-Ala]	3.42, 848	4.34, 880	4.62, 933
[28-111]	5.43, 577	5.85, 669	6.06, 270

The unfolding curves were measured in 2 mM NaAc, pH 4.2, at 20°C. C_m is the urea molarity at the midpoint of the unfolding transition and m* is the apparent m value defined by the linear extrapolation model (see Materials and Methods) in kcal·mol⁻¹ M⁻¹.