Figure 7.

Solution structures of N-terminal metal-binding domains of L. monocytogenes CadA, E. coli ZntA (1MWY) and B. subtilis CopA (1JWW). Apo forms of the proteins, marked with an asterisk in Figure 3, are compared here. van der Waals contacts involving some hydrophobic residues are shown in blue, the metal ligands are shown in yellow and some highly conserved residues are in red. The Gly residues, shaded in cyan in Figure 3, are mapped in cyan on the backbone of the structures.