Unphosphorylated glycogen synthase 2 (GYS2-a) complexed with oligo-D-glucose-GYG2 catalyzes the polyglucosylation of the latter. (Here the addition of four glucose residues is annotated.) (Orho et al. 1998; Roach et al. 2012).
Aynsley-Green, A, Orho, M, Gannon, MC, Nuttall, FQ, Blumel, P, Bosshard, NU, Groop, LC, Buist, NR, Gitzelmann, R
Hurley, TD, Roach, PJ, Tagliabracci, VS, DePaoli-Roach, AA
glycogen (starch) synthase activity of oligoGlc-GYG2:GYS2-a tetramer [cytosol]
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