Figure 3
A sketch of the reported MbCO (from Vojtechovsky et al., 1999) and Mb*CO (from Schlichting et al., 1994) structures. The CO molecule after the Fe—C bond breaking, which is induced by light at T = 20 K, reaches a `primary' docking site above the pyrrol C of the heme at about 3.6 Å from the Fe atom. |