Starch biosynthesis: the primer nonreducing-end mechanism versus the nonprimer reducing-end two-site insertion mechanism

In the biosynthesis of starch it is shown that maltodextrins act as acceptors rather than as primers and inhibit the synthesis of starch by releasing D-glucose and the growing starch chain from the active site of starch, as shown for the reaction of maltotriose with ADP-[14C]Glc pulsed starch synthase.