Figure 1 - full size

 

Figure 1.
Figure 1 Simulated-annealing F[o] - F[c] (a) and refined 2F[o] - F[c] (b) electron density for Q[B] in its active site. Maps contoured at 1.5 [sigma] and 1.0 [sigma] , respectively. The alternate model for the quinone is shown in yellow. Figs. 1 and 2 were produced using PyMOL (DeLano, 2002 [DeLano, W. L. (2002). The PyMOL Molecular Graphics System, http://www.pymol.org.]-[bluearr.gif] ).

The above figure is reprinted by permission from the IUCr: Acta Crystallogr D Biol Crystallogr (2005, 61, 605-612) copyright 2005.