Figure 2
Difference density maps before (left) and after (right) insertion of the maltose and the glucose molecules. The σA-weighted 2Fobs − Fcalc electron-density map is in blue and is contoured at 1σ. The σA-weighted Fobs − Fcalc electron density in red is contoured at 3σ and in green is contoured at −3σ. (a) and (b) maltose, (c) and (d) glucose near Trp439 and Trp469 and (e) and (f) glucose near Tyr363. The figure was produced using PyMOL (DeLano, 2002). |