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Figure 1.
Fig. 1. The structure of AZ, with the C-terminal
ligand-containing loop and the copper ion shown in purple. The
side chains of the Cys-112, His-117, and Met-121 ligands on this
loop and also of His-46 are shown as stick models in purple. The
backbone carbonyl oxygen of Gly-45, which provides the second
weak axial interaction at the copper site, and the helical
nature of the His-117-to-Met-121 sequence are omitted for
clarity. The figure was prepared by using the program PYMOL (6).
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