Figure 4 - full size

Figure 4.
Figure 4 Electron-density maps of the various CO cavities. Electron-density maps were made by removing residues affected by CO photolysis and/or CO from the model and then calculating the [A]-weighted F[o] - F[c] maps. The labelled photolyzed residues and/or CO were reinserted to show that their placements fit with the F[o] - F[c] density at 3 . The CO-bound `laser off' model is represented by the purple coordinates, the photolyzed time points are represented by the green coordinates and the photolyzed CO in blue. Positive density in the F[o] - F[c] map is displayed in red and negative density is displayed in black at 3 . (a) shows the 100 ps F[o] - F[c] map with Phe29 and His64 from the photolyzed model and the primary docking site CO deleted. (b) shows the 316 ps F[o] - F[c] map with only the photolyzed COs removed and (c) shows the 316 ns F[o] - F[c] map with the CO removed from the proximal Xe1 site.