GBE1 is a glycogen branching enzyme that catalyzes the transfer of alpha-1,4-linked glucosyl units from the outer end of a glycogen chain to an alpha-1,6 position on the same or a neighboring glycogen chain. Branching of the chains is essential to increase the solubility of the glycogen molecule and, consequently, in reducing the osmotic pressure within cells. Highest level of this enzyme are found in liver and muscle. Mutations in this gene are associated with glycogen storage disease IV (also known as Andersen's disease).
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Protein Aliases: 1; 1,4-alpha-glucan-branching enzyme; 4 to 1; 4-alpha-glucan-branching enzyme; 6) transglucosidase; 6) transglycosylase; amylo-(1; amylo-(1,4 to 1,6) transglucosidase; amylo-(1,4 to 1,6) transglycosylase; Brancher enzyme; GBE; glycogen branching enzyme; Glycogen-branching enzyme
Gene Aliases: APBD; GBE; GBE1; GSD4
UniProt ID: (Human) Q04446
Entrez Gene ID: (Human) 2632