Journal Article

Optimality principle and determination of kinetic constants for biochemical reactions

Kirill V. Tyurin and Michael A. Khanin

in Mathematical Medicine and Biology: A Journal of the IMA

Published on behalf of Institute of Mathematics and its Applications

Volume 22, issue 1, pages 1-14
Published in print March 2005 | ISSN: 1477-8599
Published online March 2005 | e-ISSN: 1477-8602 | DOI: http://dx.doi.org/10.1093/imammb/dqh018
Optimality principle and determination of kinetic constants for biochemical reactions

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An optimality principle is applied to determine kinetic constants for biochemical (enzymatic and second-order) reactions involved in a physiological system, a minimum protein consumption criterion being adopted. A direct optimization problem is to determine optimal zymogen concentrations. An ‘inverse’ optimization problem is also considered; this problem is to determine the kinetic constants for the biochemical reactions involved in a physiological system such that the optimal and observed zymogen and procofactor concentrations coincide. In solving an ‘inverse’ optimization problem we assume that the scheme of biochemical reactions and zymogen and procofactor concentrations are known. Good agreement is observed between the model results for the extrinsic blood coagulation pathway and relevant biochemical data.

The proposed method is also applicable to determining kinetic constants for other physiological biochemical-reaction systems.

Keywords: kinetic constant determination; clotting factor activation; inverse optimization problem

Journal Article.  0 words. 

Subjects: Applied Mathematics ; Biomathematics and Statistics

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