Abstract
We present a method to determine the reaction type and kinetic constants for enzyme inhibitors that decreases the number of experimental assays by at least a factor of five. It is based on a new theoretical formalism in terms of concentrations that dismisses the requirement of estimating initial velocities. Expressions for the time evolution of the concentrations of all the reactants are also given.
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REFERENCES
Chan, W. W.-C. (1995). Combination plots as graphical tools in the study of enzyme inhibition. Biochemical Journal 311: 981-985.
Cornish-Bowden, A. (1995). Fundamentals of enzyme kinetics. Portland Press, London.
Duggleby, R. G. (1994). Analysis of progress curves for enzyme-catalysed reactions: application to unstable enzyme, coupled reactions and transient-state kinetics. Biochimica et Biophysica Acta 1205: 268-274.
Duggleby, R. G. (1995). Analysis of enzyme progress curves by nonlinear regresion. Methods in Enzymology 249: 61-90.
Goudar, C. T., J. R. Sonnad and R. G. Duggleby (1999). Parameter estimation using a direct solution of the integrated Michaelis-Menten equation. Biochimica et Biophysica Acta 1429: 377-383.
Orsi, B. A. and K. F. Tipton (1979). Kinetic analysis of progress curves. Methods in Enzymology 63: 159-183.
Ritchie, R. J. and T. Prvan (1996). A simulation study on designing experiments to measure the Km of Michaelis-Menten kinetics curves. Journal of Theoretical Biology 178: 239-254.
Schnell, S. and C. Mendoza (1997). Closed form solution for time-dependent enzyme kinetics. Journal of Theoretical Biology 187: 207-212.
Schnell, S. and C. Mendoza (2000a). Time-dependent closed form solutions for fully competitive enzyme reactions. Bulletin of Mathematical Biology 62: 321-336.
Schnell, S. and C. Mendoza (2000b). Enzyme kinetics of multiple alternative substrates. Journal of Mathematical Chemistry 27: 155-170.
Zimmerle, C. T., and C. Frieden (1989). Analysis of progress curves by simulations generated by numerical integration. Biochemical Journal 258: 381-387.
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Schnell, S., Mendoza, C. A Fast Method to Estimate Kinetic Constants for Enzyme Inhibitors. Acta Biotheor 49, 109–113 (2001). https://doi.org/10.1023/A:1010219527831
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DOI: https://doi.org/10.1023/A:1010219527831