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Protein—Cofactor Interactions and EPR Parameters for the Q Quinone Binding Site of Quinol Oxidase. A Density Functional Study.

Recent multifrequency EPA studies of the "high-affinity" quinone binding site of quinol oxidase (QH site) have suggested a very asymmetric hydrogen-bonding environment for the semiquinone radical anion state. Single-sided hydrogen bonding to the O carbonyl position was one of the proposals, which co...

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Published in:Journal of the American Chemical Society Vol. 128; no. 17; pp. 5659 - 5672
Main Authors: Kacprzak, Sylvia, Kaupp, Martin, MacMillan, Fraser
Format: Article
Published: American Chemical Society 5/3/2006
Subjects:
Oxidases
Proteins
Electron paramagnetic resonance
Hydrogen bonding
Density functionals
Quinone
Binding sites
Online Access:View this record in EBSCOhost