2. Glycogen is extended from the nonreducing end using UDP-glucose ※在糖原合成酶催化下,UDFG中的葡萄糖分子 通过α-1,4糖苷键连接到糖原引物的非还原性末 端 ※分枝的形成由分枝酶催化[ glycosy(4->6)- transferase ] a terminal fragment of 6-7 residues is transferred from a branch having at least 11 residues to the C-6 hydroxyl group at a more interior position of the same or another glycogen chain2. Glycogen is extended from the nonreducing end using UDP-glucose • ※ 在糖原合成酶催化下，UDPG中的葡萄糖分子 通过a-1,4 糖苷键连接到糖原引物的非还原性末 端。 • ※ 分枝的形成由分枝酶催化［ glycosyl-(4→6)- transferase ］: a terminal fragment of 6-7 residues is transferred from a branch having at least 11 residues to the C-6 hydroxyl group at a more interior position of the same or another glycogen chain