4F4B:
reference: Synthesis and structure of 16,22-diketocholesterol bound to oxysterol-binding protein Osh4., Koag MC, Cheun Y, Kou Y, Ouzon-Shubeita H, Min K, Monzingo AF, Lee S, Steroids. 2013 Jun 10;78(9):938-944. doi: 10.1016/j.steroids.2013.05.016. PMID: 23756172

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