6O9P:
reference: Structure of Sesquisabinene Synthase 1, a Terpenoid Cyclase That Generates a Strained [3.1.0] Bridged-Bicyclic Product., Blank PN, Shinsky SA, Christianson DW, ACS Chem Biol. 2019 Apr 17. doi: 10.1021/acschembio.9b00218. PMID: 30977996

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