Figure 4. Figure 4 Haem environment of the -subunit of native deoxy (red), molecule 1 of deoxy 90% r.h. (blue) and oxy (green) structures.
The above figure is reprinted by permission from the IUCr: Acta Crystallogr D Biol Crystallogr (2002, 58, 1155-1161) copyright 2002.