The Catalytic Pathway of Cytochrome P450Cam at Atomic ResolutionSchlichting, I., Berendzen, J., Chu, K., Stock, A.M., Maves, S.A., Benson, D.E., Sweet, R.M., Ringe, D., Petsko, G.A., Sligar, S.G.
(2000) Science 287: 1615
- PubMed: 10698731
- Primary Citation of Related Structures:
- Also Cited By: 1O76
- PubMed Abstract:
- Understanding the Role of the Essential Asp251 in Cytochrome P450Cam Using Site-Directed Mcrystallography, and Kinetic Solvent Isotope Effectutagenesis, N
Vidakovic, M.,Sligar, S.G.,Li, H.,Poulos, T.L.
(1998) Biochemistry 37: 9211
- High-Resolution Crystal Structure of Cytochrome P450Cam
Poulos, T.L.,Finzel, B.C.,Howard, A.J.
(1987) J.Mol.Biol. 195: 687
Members of the cytochrome P450 superfamily catalyze the addition of molecular oxygen to nonactivated hydrocarbons at physiological temperature-a reaction that requires high temperature to proceed in the absence of a catalyst. Structures were obtained ...
Members of the cytochrome P450 superfamily catalyze the addition of molecular oxygen to nonactivated hydrocarbons at physiological temperature-a reaction that requires high temperature to proceed in the absence of a catalyst. Structures were obtained for three intermediates in the hydroxylation reaction of camphor by P450cam with trapping techniques and cryocrystallography. The structure of the ferrous dioxygen adduct of P450cam was determined with 0.91 angstrom wavelength x-rays; irradiation with 1.5 angstrom x-rays results in breakdown of the dioxygen molecule to an intermediate that would be consistent with an oxyferryl species. The structures show conformational changes in several important residues and reveal a network of bound water molecules that may provide the protons needed for the reaction.
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