title: [Resonance Raman and surface-enhanced Raman spectroscopic study of microperoxidase-11].
abstract: The electron transfer and structure of microperoxidase-11 (MP-11) in solution and at electrode/solution interface were studied by electrochemical, resonance Raman and surface-enhanced Raman spectroscopic techniques. Results show that the central iron in heme group was six-coordinated in solution, whereas it was converted to five-coordinated state as MP-11 was adsorbed on the surface of a roughened silver electrode, due to the reorientation of MP-11 molecules. The electrochemical properties of MP-11 were directly affected by the coordination state of heme iron.
authors.affiliation: Department of Chemistry, Suzhou University, 215006 Suzhou.
authors.forename: J
authors.initials: J
authors.lastname: Zheng
authors.forename: R
authors.initials: R
authors.lastname: Gu
authors.forename: T
authors.initials: T
authors.lastname: Lu
mesh_terms: D004563:Electrochemistry; D006418:Heme / Q000737:chemistry; D010084:Oxidation-Reduction; D010544:Peroxidases / Q000737:chemistry*; D012996:Solutions; D013059:Spectrum Analysis, Raman / Q000379:methods*
chemical_list: D012996:Solutions; D006418:Heme; D010544:Peroxidases; C021799:microperoxidase