3PNB:
reference: Structure of Mycobacterium tuberculosis phosphopantetheine adenylyltransferase in complex with the feedback inhibitor CoA reveals only one active-site conformation., Wubben T, Mesecar AD, Acta Crystallogr Sect F Struct Biol Cryst Commun. 2011 May 1;67(Pt, 5):541-5. Epub 2011 Apr 20. PMID: 21543857

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