Glycogen synthesis, in cyanobacteria

Synthesis in Plants and Algae and Glycogen Synthesis in Cyanobacteria... 

Reaction 4.2 is catalyzed by starch synthase (E.C. 2.4.1.21 ADP-glucose 1,4-a-D-glucan 4-a-glucosyltransferase). Similar reactions are noted for glycogen synthesis in cyanobacteria and other bacteria,24 26 but the enzyme is referred to as glycogen synthase (also E.C. 2.4.1.21). 

The enzymatic reactions involved in starch synthesis in higher plants and algae and in glycogen synthesis in cyanobacteria are reviewed in this article. Regulation of a-1,4 and a-1,6 glucan synthesis at the enzymic level is discussed, and mutants that cause specific enzymatic deficiencies that affect starch structure are also reviewed. Recent reviews on starch synthesis have been published and are noted (1-6). 

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