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AT trimer. (A) Ribbon diagram of the trimer shown together with molecular surface in two orthogonal views. Each subunit is colored differently, and zinc atoms are shown as cyan spheres. (B) Hydrophobic core of the trimer. Shown is a stereoview with ribbons corresponding to residues 1–9 and 35–53 of three monomers shown in different colors. Side chains of residues that form stabilizing hydrophobic interactions are shown in sticks. Residues from one monomer are labeled.
