Abstract
Linear assemblies of cytochrome b562 (cyt b562) containing a chemically-modified heme molecule on the protein surface were constructed by successive intermolecular heme–heme pocket interactions and then immobilized onto a gold electrode via a heme molecule anchored on the electrode. The accumulation of the cyt b562 units were confirmed by electrochemical analyses. The average number of proteins in each assembly was estimated to be about 6 units by quartz crystal microbalance and atomic force microscopy (AFM) analyses. The linear assemblies of the cyt b562 units were clearly visualized by AFM as a rod-like architecture with a vertical orientation to the electrode surface.
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