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Figure 3.
Fig. 3. Relationship of the two t-butanol-binding sites
to groups at the active site. A, in the free enzyme, t-butanol
occupies the distal portion of the substrate-binding site. B, in
the enzyme-substrate complexes, t-butanol occupies an auxiliary
site adjacent to the distal portion of the substrate-binding
site, further removed from the iron.
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