2VCB:
reference: Structural and mechanistic insight into the basis of mucopolysaccharidosis IIIB., Ficko-Blean E, Stubbs KA, Nemirovsky O, Vocadlo DJ, Boraston AB, Proc Natl Acad Sci U S A. 2008 May 6;105(18):6560-5. Epub 2008 Apr 28. PMID: 18443291

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