Can Apomyoglobin Form a Complex with a Spherical Ligand? Interactions Between Apomyoglobin and [C60] Fullerene Derivative
Abstract:The preparation and characterization of the stable equine skeletal muscle apomyoglobin and eee-isomer of tris-malonic acid [C60] fullerene complex is reported. For this new bio-nanomaterial preparation, a procedure of complexation-during-protein-refolding was used and the obtained compound sustained separation by gel-filtration and ion-exchange chromatography. The apomyoglobin-tris-malonic acid [C60] fullerene complex was characterized by UV-vis spectroscopy, steady state fluorescence, time-resolved fluorescence, and circular dichroism spectroscopies. Important information provided by this study, regarding the stability and properties of new material, may lead to a better understanding of the apomyoglobin protein binding characteristics, as well as to development of novel antioxidant and photodynamic therapeutic agents and components for bioelectronic devices.
Document Type: Research Article
Publication date: April 1, 2007
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