Interaction of Cu(II) and Ni(II) with Ypk9 Protein Fragment via NMR Studies

Figure 1

Stacked image of ¹H NMR spectra for the aromatic (a) and aliphatic (b) regions for the PK9-H peptide, 2.5 mM, and pH 7.6, 𝑇 298 K, with increasing amounts of Cu(II) from 1 : 0.00 to 1 : 0.05 metal to ligand molar ratios.

(a)

(b)