Figure 3 - full size

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.