Electrochemical determination of basic biochemical properties of enzyme enterokinase

摘要

Basic biochemical properties such as Michaelis constant (K (M)), turnover number (k (cat)), and the ratio between these two kinetic parameters of enzyme enteropeptidase were determined by electrochemical impedance spectroscopy. This method is developed for an easy, fast, and economic determination of mention enzyme characteristics and can be used for wide spectrum of biochemical systems. All values obtained by impedance measurements are compared and are in good agreement with those determined by traditional spectroscopic techniques and literature data. Therefore, one can suppose that electrochemical methods can be successful for such measurements also in the cases where usual ones (UV-Vis, fluorescence spectroscopy) are not able to determine these enzyme characteristics.