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Cite this article
Messiha HL, Kent E, Malys N, Carroll KM, Mendes P, Smallbone K.2013. Enzyme characterisation and kinetic modelling of the pentose phosphate pathway in yeast. PeerJ PrePrints1:e146v1https://doi.org/10.7287/peerj.preprints.146v1
We present the quantification and kinetic characterisation of the enzymes of the pentose phosphate pathway in Saccharomyces cerevisiae. The data are combined into a mathematical model that describes the dynamics of this system and allows for the predicting changes in metabolite concentrations and fluxes in response to perturbations. We use the model to study the response of yeast to a glucose pulse. We then combine the model with an existing glycolysis one to study the effect of oxidative stress on carbohydrate metabolism. The combination of these two models was made possible by the standardized enzyme kinetic experiments carried out in both studies. This work demonstrates the feasibility of constructing larger network models by merging smaller pathway models.
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