... changes in the concentration of Pi do not modify the partition (Fig. 3A). However, the presence of Piconsiderably affects the dynamics of the system. Indeed, in the presence of 10 mMPi, the model ... first, the activating interaction of AdoMet with TS may attenuate the changes in the flux of threonine due to a modification of the level of AdoMet. Indeed, upon an increase in the level of AdoMet, ... interms of the number of the enzymes involved, the kineticmechanisms of the competing enzymes and the number aswell as the nature of the allosteric controls. Whether suchdiversity in the organization...