Table 3

Average bond lengths (Å) between nonheme iron and atoms in the catalytic cycle
Statea H183 H187 D333 D333 CAR CAR Peroxide Peroxide
NE2 NE2 OD1 OD2 C1 C9a O1 O2
(1) Resting 2.1 2.2 2.1 2.8
(Oxy: Fdrest)
(2) Reduced 2.1 2.1 2.0 2.6
(Oxy: Fdred)
(2’) CAR-bound 2.1 2.3 2.0 2.6 4.3 4.2
(Oxy: FdCAR)
(3) Reduced CAR-bound 2.2 2.1 Ab:1.9 Ab:2.7 4.6 4.7
(Oxy: Fdred-CAR) B&Cb:2.0 B&Cb:2.2
(3’) Oxygen-bound 2.1 2.1 2.0 2.7 2.6 2.0
(Oxy: FdO2)
(4) CAR- and oxygen-bound 2.1 2.1 1.9 2.6 4.6 4.5 Ab:2.5 Ab:1.9
(Oxy: FdCAR-O2) B&Cb:1.8 B&Cb:1.8

a Numbers correspond to Figure 1.

b Alphabet indicates the chain name.

Ashikawa et al.

Ashikawa et al. BMC Structural Biology 2012 12:15   doi:10.1186/1472-6807-12-15

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