title: The nature of the phosphate complex of sulphite oxidase from electron-paramagnetic-resonance studies.
abstract: The phosphate complex of sulphite oxidase in the Mo(V) oxidation state was investigated by e.p.r. spectroscopy. Third-derivative spectra reveal a wealth of structural detail previously unobserved in this spectrum. Most notable is the presence of hyperfine coupling from two inequivalent I = 1/2 nuclei, which we tentatively attribute to two 31P nuclei. Unresolved hyperfine interactions from at least one exchangeable 1H nucleus are also present.
authors.affiliation: Exxon Research and Engineering, Annandale, NJ.
authors.forename: G N
authors.initials: GN
authors.lastname: George
authors.forename: R C
authors.initials: RC
authors.lastname: Prince
authors.forename: C A
authors.initials: CA
authors.lastname: Kipke
authors.forename: R A
authors.initials: RA
authors.lastname: Sunde
authors.forename: J H
authors.initials: JH
authors.lastname: Enemark
mesh_terms: D004578:Electron Spin Resonance Spectroscopy; D046911:Macromolecular Substances; D010088:Oxidoreductases / Q000378:metabolism*; D050862:Oxidoreductases Acting on Sulfur Group Donors / Q000378:metabolism*; D010710:Phosphates / Q000378:metabolism*
chemical_list: D046911:Macromolecular Substances; D010710:Phosphates; D010088:Oxidoreductases; D050862:Oxidoreductases Acting on Sulfur Group Donors