1GPF:
reference: Psammaplin A, a chitinase inhibitor isolated from the Fijian marine sponge Aplysinella rhax., Tabudravu JN, Eijsink VG, Gooday GW, Jaspars M, Komander D, Legg M, Synstad B, van Aalten DM, Bioorg Med Chem 2002 Apr;10(4):1123-8. PMID: 11836123

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