Figure 4. (a) Hydrogen-bonding of the N^2 and N^1 of G5 with the side chain thiols of zinc-bound Cys185 and Cys200 and the O^6 of G5 with the backbone amide of Arg201 of the molecule A ZnF3 motif. G5 stacks with Arg195 of the ZnF3 motif.
