2BFW:
reference: Crystal structure of an archaeal glycogen synthase: insights into oligomerization and substrate binding of eukaryotic glycogen synthases., Horcajada C, Guinovart JJ, Fita I, Ferrer JC, J Biol Chem. 2006 Feb 3;281(5):2923-31. Epub 2005 Nov 29. PMID: 16319074

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).