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. Author manuscript; available in PMC: 2009 Jun 28.
Published in final edited form as: Mol Genet Metab. 2007 Oct 29;93(2):145–159. doi: 10.1016/j.ymgme.2007.09.008

Fig. 3. Mathematical design of 13C labeling experiment.

Fig. 3

A. Precision of 13C labeling experiment in determining glycolysis and PPP fluxes, when a mixture of 1-13C glucose, U-13C glucose, and naturally abundant glucose is supplied. Dark color indicates low precision, and light color indicates high precision, as shown in the adjoining color map. The 1-13C/U-13C glucose combination used in this work is indicated by ‘▲’. B. Precision of 13C labeling experiment in determining TCA cycle, anaplerotic, and associated carbon source entry fluxes, when a mixture of 1-13C glucose, U-13C glucose, and naturally abundant glucose is supplied. Dark color indicates low precision, and light color indicates high precision, as shown in the adjoining color map. The 1-13C/U-13C glucose combination used in this work is indicated by ‘▲’.