Mo^V Electron Paramagnetic Resonance of Sulfite Oxidase Revisited: The Low-pH Chloride Signal

Authors

Christian J. Donnan, University of Saskatchewan
Heather L. Wilson, Duke University
Brian Bennett, Marquette UniversityFollow
Roger C. Prince, Exxon Mobil
K. V. Rajagopalan, Duke University
Graham N. George, University of Saskatchewan

Document Type

Article

Language

eng

Format of Original

15 p.

Publication Date

3-2008

Publisher

American Chemical Society

Source Publication

Inorganic Chemistry

Source ISSN

0020-1669

Original Item ID

doi: 10.1021/ic7017083

Abstract

Valuable information on the active sites of molybdenum enzymes has been provided by Mo^V electron paramagnetic resonance (EPR) spectroscopy. In recent years, multiple resonance techniques have been extensively used to examine details of the active-site structure, but basic continuous-wave (CW) EPR has not been re-evaluated in several decades. Here, we present a re-examination of the CW EPR spectroscopy of the sulfite oxidase low-pH chloride species and provide evidence for direct coordination of molybdenum by chloride.

Comments

Accepted version. Inorganic Chemistry, Vol. 47, No. 6 (March 2008): 2033-2038. DOI. © 2008 American Chemical Society Publications. Used with permission.

Brian Bennett was affiliated with Medical College of Wisconsin at the time of publication.

Recommended Citation

Donnan, Christian J.; Wilson, Heather L.; Bennett, Brian; Prince, Roger C.; Rajagopalan, K. V.; and George, Graham N., "Mo^V Electron Paramagnetic Resonance of Sulfite Oxidase Revisited: The Low-pH Chloride Signal" (2008). Physics Faculty Research and Publications. 23.
https://epublications.marquette.edu/physics_fac/23