13C labeling analysis of sugars by high resolution-mass spectrometry for metabolic flux analysis

Abstract : Metabolic flux analysis is particularly complex in plant cells because of highly compartmented metabolism. Analysis of free sugars is interesting because it provides data to define fluxes around hexose, pentose, and triose phosphate pools in different compartment. In this work, we present a method to analyze the isotopomer distribution of free sugars labeled with carbon 13 using a liquid chromatography ehigh resolution mass spectrometry, without derivatized procedure, adapted for Metabolic flux analysis. Our results showed a good sensitivity, reproducibility and better accuracy to determine isotopic en-richments of free sugars compared to our previous methods.
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Submitted on : Wednesday, January 23, 2019 - 1:54:40 PM
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Sébastien Acket, Anthony Degournay, Franck Merlier, Brigitte Thomasset. 13C labeling analysis of sugars by high resolution-mass spectrometry for metabolic flux analysis. Analytical Biochemistry, Elsevier Masson, 2017, 527, pp.45-48. ⟨10.1016/j.ab.2017.02.005⟩. ⟨hal-01988400⟩

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