1EOK:
reference: Structural basis for the substrate specificity of endo-beta-N-acetylglucosaminidase F(3)., Waddling CA, Plummer TH Jr, Tarentino AL, Van Roey P, Biochemistry 2000 Jul 11;39(27):7878-85. PMID: 10891067

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