A concise review is provided of the contributions that various spectroscopic methods have made to our understanding of the physical and electronic structures of mononuclear molybdenum enzymes. Contributions to our understanding of the structure and function of each of the major families of these enzymes is considered, providing a perspective on how spectroscopy has impacted the field.
Keywords: DMSO reductase; EPR spectroscopy; X-ray absorption spectroscopy; electronic absorption spectroscopy; magnetic circular dichroism spectroscopy; resonance Raman spectroscopy; sulfite oxidase; xanthine oxidase.