1A8I:
reference: The structure of a glycogen phosphorylase glucopyranose spirohydantoin complex at 1.8 A resolution and 100 K: the role of the water structure and its contribution to binding., Gregoriou M, Noble ME, Watson KA, Garman EF, Krulle TM, de la Fuente C, Fleet GW, Oikonomakos NG, Johnson LN, Protein Sci 1998 Apr;7(4):915-27. PMID: 9568898

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