Full-length human MeCP2 gains α-helical content with increasing TFE concentration. (a) Circular dichroism spectra of MeCP2 measured in 0% (□), 20% (•), 50% (⋄), and 70% (▴) TFE. (b) Percent secondary structure was obtained after deconvolution of the CD spectra from panel (a) using CDpro software. The % disordered (▴), % α-helix (♦), and % β strand/turn (▪) subsequently were plotted against each TFE concentration.