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Figure 3.
Figure 3. Electron density for Cys112 and a bound phosphate
ion in the O-FabH Structure. (a) The SA-omit map at Cys112,
contoured at 1.5 s. The extra density, centered at 2.3 Å
from the Sg atom, could be a tightly bound water molecule or
hydroxyl anion (OH -). (b) The density for a bound phosphate
ion, also contoured at 1.5 s. Broken lines indicate the hydrogen
bonds (distances labeled) between the phosphate ion and FabH.
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