Fig. 14

Binding sites of K₁-CanA for divalent ions. Residues showing chemical shift changes Δδ^comb with (top) Ca²⁺-binding and with (bottom) Mg²⁺-binding. (Left two panels) residues with σ₀^corr < Δδ^comb < 2 σ₀^corr (red), residues of with Δδ^comb > 2 σ₀^corr (orange). (Right two panels) presentation of oxygen atoms of the significant residues on the protein surface. Structures were represented by MolMol¹⁵.