Figure 3

(a) The change over time of the coefficients of variability for ODC1, SRM and SAT1 after exposure of Zs + and Zs− cells to anti-tumour agents and (b) the difference in reaction flow via these metabolites for the putrescine moiety. ODC, ornithine decarboxylase; SAT2, spermine N1-acetyltransferase 2.