Glycogen synthetase polysaccharides

Glycogen synthetase catalyses the sequential addition of glucose from UDPG to a polysaccharide acceptor. The residues are linked a(l-4). These... 

The formation of a branched polysaccharide, similar to glycogen, which is present in certain plants, especially waxy maize, has not yet been clarified however, it could be explained by interaction with starch phosphorylase or starch synthetase, causing branching. Neither the mechanisms for the separate formation of the linear and branched amylopectin components, nor the proportions of each in various plants, are known at present. These problems are undoubtedly a matter of genetic determinants that are awaiting future elucidation. 

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