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Updated: Jun 28, 2026

Single Liposome Measurements for the Study of Proton-Pumping Membrane Enzymes Using Electrochemistry and Fluorescent Microscopy
Published on: February 21, 2019
Electrochemical study of the interaction between cytochrome P450sccK201E and cholesterol
Mirco Antonini1, Paola Ghisellini, Cristina Paternolli
1Department of Biophysical M&O Sciences and Technologies, University of Genova, Corso Europa, 30 16132 Genova, Italy.
Abstract:
Cytochrome P450sccK201E, mutated form of cytochrome P450scc native recombinant (P450sccNR), was employed to study the enzyme-substrate interaction. The detection of the cholesterol was performed by electrochemical method using cyclic voltammetry (CV) and chronoamperometry measurements. The biochemical analysis was realized to observe the electrochemical responses of the engineerized enzyme to three different forms of cholesterol: free, low-density lipoprotein (LDL) and high-density lipoproteins (HDL). Compared to cytochrome P450sccNR, the cytochrome P450sccK201E displays a different behavior in the interaction with the substrate detection. The results show that the engineerized enzyme can be utilized for the cholesterol detection in biosensor field.
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