Figure 4

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