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. 2014 Dec 29;112(2):412–417. doi: 10.1073/pnas.1419818112

Fig. 4.

Fig. 4.

Predicted metabolic fluxes of intermediate metabolites related to intermediate carbon and nitrogen metabolic pathways under nitrogen-replete and -stressed conditions. The flux line width represents the relative volume of the flux as calculated by the model. (A) Fluxes that represent recycling of internal nitrogen recycling. Dark gray, glutamate dehydrogenase- and aspartate aminotransferase-related fluxes; light gray, GS/GOGAT pathway; black, nitrogen uptake and assimilation related fluxes. (B) Fluxes that are mainly related to the TCA and the urea cycles. Fluxes are color-coded according to their pathway: black, nitrogen uptake and assimilation and shunting carbon toward FA metabolism; blue, urea cycle; green, pyruvate-related; red, TCA cycle. acCoA, acetyl-CoA; arg, arginine; arg-suc, argininosuccinate; asp, aspartate; carbam-P, carbamoyl-phosphate; citrul, citrulline; GDH, glutamate dehydrogenase; gln, glutamine; glu, glutamate; GS, glutamine synthetase; maCoA, malonyl CoA; NH4+, ammonium; NO2−, nitrite; NO3−, nitrate; oxa, oxaloacetate; 2-oxoglut, 2-oxoglutarate; PEP, phosphoenolpyruvate; pyr, pyruvate; suc-CoA, succinyl CoA.