[Resonance Raman and surface-enhanced Raman spectroscopic study of microperoxidase-11].
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.
Zheng
J
J
Department of Chemistry, Suzhou University, 215006 Suzhou.
Gu
R
R
Lu
T
T
D004563:Electrochemistry; D006418:Heme / Q000737:chemistry; D010084:Oxidation-Reduction; D010544:Peroxidases / Q000737:chemistry*; D012996:Solutions; D013059:Spectrum Analysis, Raman / Q000379:methods*
D012996:Solutions; D006418:Heme; D010544:Peroxidases; C021799:microperoxidase