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Spectroscopic And Thermodynamic Analysis Of Co Rebinding And Photodissociation From Fe (Ii) Lpo, Dustin Michael Lockney
Spectroscopic And Thermodynamic Analysis Of Co Rebinding And Photodissociation From Fe (Ii) Lpo, Dustin Michael Lockney
Theses, Dissertations and Capstones
Lactoperoxidase (LPO) is a heme peroxidase found in tears, milk, saliva, and cervical fluids that has bactericidal activity. The bactericidal nature of LPO is due to its ability to oxidize halides and pseudohalides in the presence of H2O2. Full understanding of the catalytic cycle of LPO requires detailed characterization of the mechanism of ligand binding to the enzyme active site. This includes a dynamic and energetic description of conformational changes associated with heme-ligand interactions. Photoacoustic calorimetry is applied to determine the kinetics and magnitude of reaction volume and enthalpy changes for CO dissociation from CO-LPO. Time-resolved absorption spectroscopy was used …