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Figure 2.
Fig. 2. The hexameric structure of FtsH. (A) Top view
approximately down the crystallographic twofold axis from the
supposed membrane side onto the AAA ring. The colors denote the
individual subunits. ADP and active site residues are shown as
sticks (gray, carbons; blue, nitrogens; red, oxygens; cyan,
phosphorous), and the Zn^2+ ions are shown as golden spheres.
(B) Side view, the AAA ring is on the bottom, the protease ring
on the top.
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