3DJ8:
reference: Synthesis of (2S)-2-amino-7,8-epoxyoctanoic acid and structure of its metal-bridging complex with human arginase I., Zakharian TY, Di Costanzo L, Christianson DW, Org Biomol Chem. 2008 Sep 21;6(18):3240-3. Epub 2008 Aug 6. PMID: 18802628

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