2HKA:
reference: Structural Basis of Sterol Binding by NPC2, a Lysosomal Protein Deficient in Niemann-Pick Type C2 Disease., Xu S, Benoff B, Liou HL, Lobel P, Stock AM, J Biol Chem. 2007 Aug 10;282(32):23525-31. Epub 2007 Jun 14. PMID: 17573352

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