3WMS:
reference: Structural basis of a mutant Y195I alpha-cyclodextrin glycosyltransferase with switched product specificity from alpha-cyclodextrin to beta-/gamma-cyclodextrin., Xie T, Hou Y, Li D, Yue Y, Qian S, Chao Y, J Biotechnol. 2014 Jul 20;182-183:92-6. doi: 10.1016/j.jbiotec.2014.03.014. Epub , 2014 Mar 15. PMID: 24637377

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