4TQ4:
reference: Structure of a Membrane-Embedded Prenyltransferase Homologous to UBIAD1., Huang H, Levin EJ, Liu S, Bai Y, Lockless SW, Zhou M, PLoS Biol. 2014 Jul 22;12(7):e1001911. doi: 10.1371/journal.pbio.1001911., eCollection 2014 Jul. PMID: 25051182

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