Dimethylsulfoxide (DMSO) Reductase, a Member of the DMSO Reductase Family of Molybdenum Enzymes

Part of the Biological Magnetic Resonance book series (BIMR, volume 29)


Herein we describe the application of continuous wave (CW) and pulsed EPR spectroscopy to the structural (geometric and electronic) characterization of the Mo(V) active site within dimethylsulfoxide (DMSO) reductase and where appropriate, model molybdenum(V) complexes. Specifically, the electronic and geometric structure of the Low-g and High-g EPR signals and their relevance to the enzymes’ catalytic cycle are described. CW and pulsed EPR studies of a dithionite-reduced sample of DMSO reductase reveal the presence of a sulfur-centered radical localized on the molybdenum cofactor.


Hyperfine Coupling Sulfite Oxidase Molybdenum Atom Electron Paramagnetic Reso DMSO Reductase 
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© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  1. 1.Center for Magnetic ResonanceThe University of QueenslandSt. LuciaAustralia

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