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Table 3 Average bond lengths (Å) between nonheme iron and atoms in the catalytic cycle

From: Structural insight into the substrate- and dioxygen-binding manner in the catalytic cycle of rieske nonheme iron oxygenase system, carbazole 1,9a-dioxygenase

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
  1. a Numbers correspond to Figure 1.
  2. b Alphabet indicates the chain name.