1NEP:
reference: Structure of a cholesterol-binding protein deficient in Niemann-Pick type C2 disease., Friedland N, Liou HL, Lobel P, Stock AM, Proc Natl Acad Sci U S A 2003 Mar 4;100(5):2512-7. PMID: 12591954

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