2BU9:
reference: Unique binding of a non-natural L,L,L-substrate by isopenicillin N synthase., Howard-Jones AR, Rutledge PJ, Clifton IJ, Adlington RM, Baldwin JE, Biochem Biophys Res Commun. 2005 Oct 21;336(2):702-8. PMID: 16143309

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