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Figure 3.
Figure 3. The molecular interface of the Im3 dimer.
Monomers A and B are depicted as Ca traces. Residues at the
interface are shown in ball-and-stick representation in green
(monomer A) and blue (monomer B). A major intermolecular
interaction is the covalent cross-link of the thiols via a zinc
ion, shown in yellow. Additional interactions include two
intermolecular hydrogen bonds as well as hydrophobic
interactions involving the nonpolar atoms of nine residues from
monomer A, and seven residues from monomer B (see text).
Furthermore, there are two water molecules, shown in red, that
mediate the interaction between the monomers. (This figure was
made with the program MOLSCRIPT [43].)
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