4OOY:
reference: Avibactam and class C beta-lactamases: mechanism of inhibition, conservation of binding pocket and implications for resistance., Lahiri SD, Johnstone M, Ross PL, McLaughlin R, Olivier NB, Alm RA, Antimicrob Agents Chemother. 2014 Jul 14. pii: AAC.03057-14. PMID: 25022578

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