Figure 3.

Circular dichroism of model peptide derivatives shows increases in polyproline II propensity upon phosphorylation. Normalized mean residue ellipticity is proportional to the ellipticity maximum in the range 226–230 nm. (A) Change in normalized mean residue ellipticity upon phosphorylation. Blue, threonine-containing peptides; red, serine-containing peptides. (B) Temperature melt of normalized mean residue ellipticity. Blue, threonine-containing peptides; red, serine-containing peptides; circles, unphosphorylated; triangles, phosphorylated. To see this figure in color, go online.