Fig. 2. (a) CD spectra showing the induction of helicity upon addition of various metal ions. (b) Model showing an Ile residue at the i + 4 (pink) position in contact distance with the Phen functionality in the metal-bound HCM. (c) Molar ellipticity of peptide variants (metal-free, bound to Ni, or in the presence of TFE) monitored at 222 nm.
