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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/313

Title: The Substrate-Depletion Error on the Multiple Michaelis-Menten Equation with and without an Added Linear Term in the Substrate Concentration
Authors: Heirwegh, Karel P. M.
Vermeir, Marc
Molenberghs, Geert
Keywords: Medical statistics
Issue Date: 1993
Citation: Journal of Biochemical and Biophysical Methods, 27(2), p. 151-156
Abstract: Saturation curves for substrate interaction with an acceptor (enzyme, binding or carrier protein) are often analysed on the assumption that the amount of acceptor-bound substrate is negligible compare to its total amount. Analytical criteria permitting one to decide whether the assumption is justified or not for systems described by a single Michaelis-Menten equation have been derived previously. For more complicated systems, error formulae often cannot be obtained in closed form and, if obtainable, are unwieldy. How this more complicated problem can be tackled is shown for mixtures of acceptor sites described by a sum of several Michaelis-Menten terms, without or with an additional term for ‘non-specific’ uptake or binding. In particular, it is shown that the maximum error, for which simple analytical expressions are obtained, provides a valid criterion for assessing whether substrates depletion is negligible or not
URI: http://hdl.handle.net/1942/313
DOI: 10.1016/0165-022X(93)90059-W
ISI #: A1993LX81500008
ISSN: 0165-022X
Type: Journal Contribution
Appears in Collections: Research publications

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