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. 2004 Oct 15;88(2):1250–1263. doi: 10.1529/biophysj.104.050104

TABLE 1.

Distance of the center of mass and of the nearest atom from the CO binding axis in the CO-bound and CO-free P450cam complexes with camphor and norcamphor

Substrate CO Center of mass (Å) Nearest atom (Å)
Camphor Bound 3.53 1.51 (C10)
Absent 2.86 1.19 (C6)
Norcamphor
Bound 3.75 2.90 (C5)
Absent 3.58 1.89 (C5)

The change of the camphor's nearest atom reflects clearly the rotation of the substrate.