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The theoretical model of cellular AA utilization. AMP, adenosine monophosphate; ATP, adenosine triphosphate; CTP, cytidine triphosphate; dTTP, deoxythymidine triphosphate; GMP, guanosine monophosphate; IMP, inosine monophosphate; NO, nitric oxide; R5P, ribose 5-phosphate; TCA cycle, tricarboxylic acid cycle; UMP, uridine monophosphate; UTP, uridine-5′-triphosphate.
