In glycogen or amylopectin synthesis, the enzyme that catalyzes the transfer of a segment of a 1,4-alpha-glucan chain to a primary hydroxy group in a similar glucan chain. EC 2.4.1.18.

Synonyms: Q-Enzyme Q Enzyme Branching Enzyme, Starch EC 2.4.1.18 Branching Enzyme, 1,4-alpha-Glucan Enzyme, Glycogen Branching 1,4-alpha-D-Glucan:1,4-alpha-D-glucan 6-alpha-D-(1,4-alpha-D-glucano)-transferase Enzyme, Amylopectin Branching 1,4-alpha-Glucan Branching Enzyme Glycogen Branching Enzyme 1,4 alpha Glucan Branching Enzyme Enzyme, 1,4-alpha-Glucan Branching Branching Enzyme, Glycogen Amylopectin Branching Enzyme Glycosyltransferase, Branching Starch Branching Enzyme Branching Enzyme 0 Branching Glycosyltransferase Enzyme, Branching Branching Enzyme, Amylopectin Enzyme, Starch Branching